firebase 11.9 crashes when app is running for over an hour in the background, 11.8.1 doesn't.

### Description

I have app that runs in background and plays audio. on firebase 11.8.1, it runs for 8+ hrs without crash.
With 11.9, it crashes in the background in an hour and half. even with no foreground activity (screen off).
I tested this 3 times (debug build, release build and testflight build on real device running ios 18.3.1) with both versions of firebase, and got consistent results - 11.8.1 runs over 8 hours. 11.9 crashes in an hour and half roughly.  
Nothing in my code has changed, only change was firebase version.
I also see no crashlytics crashes either (I know crashlytics crashes are being properly shown/processed - i have a test button with fatalError() to test that).

 I guess if some background task is run longer than 30 seconds - app shall be terminated in the background? 
 i see warnings in debug logs on debug build - APMAnalyticsMeasurementBackgroundTask taking longer than 30 seconds 

### Reproducing the issue

App that has background audio permissions, plays audio in the background.
Run the app in the background. at some point it is terminated.

### Firebase SDK Version

11.9.0

### Xcode Version

16.1

### Installation Method

Swift Package Manager

### Firebase Product(s)

Crashlytics

### Targeted Platforms

iOS

### Relevant Log Output

```shell
11.9.0 - [FirebaseAnalytics][I-ACS023129] Network fetch failed. Will retry later. Code, error: 0, Error Domain=NSURLErrorDomain Code=-1000 "bad URL" UserInfo={_kCFStreamErrorCodeKey=22, NSUnderlyingError=0x10bd9d650 {Error Domain=kCFErrorDomainCFNetwork Code=-1000 "(null)" UserInfo={_NSURLErrorNWPathKey=satisfied (Path is satisfied), interface: en0[802.11], ipv4, dns, uses wifi, _kCFStreamErrorCodeKey=22, _kCFStreamErrorDomainKey=1}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDownloadTask <6D6B5620-CE74-459E-A03B-FEBB5561DCB2>.<1>, _NSURLErrorRelatedURLSessionTaskErrorKey=(
    "LocalDownloadTask <6D6B5620-CE74-459E-A03B-FEBB5561DCB2>.<1>"
), NSLocalizedDescription=bad URL, NSErrorFailingURLStringKey=https://app-analytics-services.com/config/app/1:465338682942:ios:0792930e08ef40bed38b6f?platform=ios&runtime_version=0&gmp_version=110900, NSErrorFailingURLKey=https://app-analytics-services.com/config/app/1:465338682942:ios:0792930e08ef40bed38b6f?platform=ios&runtime_version=0&gmp_version=110900, _kCFStreamErrorDomainKey=1}
11.9.0 - [FirebaseAnalytics][I-ACS002002] Measurement timer scheduled to fire in approx. (s): 1813.944071173668
Background Task 23 ("APMAnalyticsMeasurementBackgroundTask"), was created over 30 seconds ago. In applications running in the background, this creates a risk of termination. Remember to call UIApplication.endBackgroundTask(_:) for your task in a timely manner to avoid this.

There are many of these... 
no crashlytics crashes after app is terminated in the background
```

### If using Swift Package Manager, the project's Package.resolved



<details>
<summary>Expand <code>Package.resolved</code> snippet</summary>
<br>

```json
{
        "package": "abseil",
        "repositoryURL": "https://github.com/google/abseil-cpp-binary.git",
        "state": {
          "branch": null,
          "revision": "bbe8b69694d7873315fd3a4ad41efe043e1c07c5",
          "version": "1.2024072200.0"
        }
      },
 {
        "package": "Firebase",
        "repositoryURL": "https://github.com/firebase/firebase-ios-sdk.git",
        "state": {
          "branch": null,
          "revision": "eb523407e4293568ed55590728205c359cbecc5b",
          "version": "11.9.0"
        }
      },
      {
        "package": "GoogleAppMeasurement",
        "repositoryURL": "https://github.com/google/GoogleAppMeasurement.git",
        "state": {
          "branch": null,
          "revision": "d80e25104abe76d69a134d4ec18f011edd8df06c",
          "version": "11.9.0"
        }
      },
      {
        "package": "GoogleDataTransport",
        "repositoryURL": "https://github.com/google/GoogleDataTransport.git",
        "state": {
          "branch": null,
          "revision": "617af071af9aa1d6a091d59a202910ac482128f9",
          "version": "10.1.0"
        }
      },
      {
        "package": "GoogleUtilities",
        "repositoryURL": "https://github.com/google/GoogleUtilities.git",
        "state": {
          "branch": null,
          "revision": "53156c7ec267db846e6b64c9f4c4e31ba4cf75eb",
          "version": "8.0.2"
        }
      },
      {
        "package": "gRPC",
        "repositoryURL": "https://github.com/google/grpc-binary.git",
        "state": {
          "branch": null,
          "revision": "cc0001a0cf963aa40501d9c2b181e7fc9fd8ec71",
          "version": "1.69.0"
        }
      },
      {
        "package": "GTMSessionFetcher",
        "repositoryURL": "https://github.com/google/gtm-session-fetcher.git",
        "state": {
          "branch": null,
          "revision": "a2ab612cb980066ee56d90d60d8462992c07f24b",
          "version": "3.5.0"
        }
      },
      {
        "package": "InteropForGoogle",
        "repositoryURL": "https://github.com/google/interop-ios-for-google-sdks.git",
        "state": {
          "branch": null,
          "revision": "040d087ac2267d2ddd4cca36c757d1c6a05fdbfe",
          "version": "101.0.0"
        }
      },
      {
        "package": "leveldb",
        "repositoryURL": "https://github.com/firebase/leveldb.git",
        "state": {
          "branch": null,
          "revision": "0706abcc6b0bd9cedfbb015ba840e4a780b5159b",
          "version": "1.22.2"
        }
      },
      {
        "package": "nanopb",
        "repositoryURL": "https://github.com/firebase/nanopb.git",
        "state": {
          "branch": null,
          "revision": "b7e1104502eca3a213b46303391ca4d3bc8ddec1",
          "version": "2.30910.0"
        }
      }
 {
        "package": "Promises",
        "repositoryURL": "https://github.com/google/promises.git",
        "state": {
          "branch": null,
          "revision": "540318ecedd63d883069ae7f1ed811a2df00b6ac",
          "version": "2.4.0"
        }
      }

```

</details>


### If using CocoaPods, the project's Podfile.lock



<details>
<summary>Expand <code>Podfile.lock</code> snippet</summary>
<br>

```yml

Replace this line with the contents of your Podfile.lock!

```

</details>

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Uh oh!

firebase 11.9 crashes when app is running for over an hour in the background, 11.8.1 doesn't. #14541

Description

Reproducing the issue

Firebase SDK Version

Xcode Version

Installation Method

Firebase Product(s)

Targeted Platforms

Relevant Log Output

If using Swift Package Manager, the project's Package.resolved

If using CocoaPods, the project's Podfile.lock

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Uh oh!

firebase 11.9 crashes when app is running for over an hour in the background, 11.8.1 doesn't. #14541

Description

Description

Reproducing the issue

Firebase SDK Version

Xcode Version

Installation Method

Firebase Product(s)

Targeted Platforms

Relevant Log Output

If using Swift Package Manager, the project's Package.resolved

If using CocoaPods, the project's Podfile.lock

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

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