TEST(datastore): add regression test for filtering by key.

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PiperOrigin-RevId: 392067151

Source-Link: googleapis/googleapis@06345f7

Source-Link: googleapis/googleapis-gen@95882b3

🤖 I have created a release \*beep\* \*boop\*
---
## [1.1.0](https://www.github.com/googleapis/nodejs-artifact-registry/compare/v1.0.7...v1.1.0) (2021-08-23)


### Features

* turns on self-signed JWT feature flag ([#74](https://www.github.com/googleapis/nodejs-artifact-registry/issues/74)) ([a4c3f55](https://www.github.com/googleapis/nodejs-artifact-registry/commit/a4c3f556afe45914ce303ac665e56487f6ed8c5d))
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This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 392067151

Source-Link: googleapis/googleapis@06345f7

Source-Link: googleapis/googleapis-gen@95882b3

🤖 I have created a release \*beep\* \*boop\*
---
## [1.1.0](https://www.github.com/googleapis/nodejs-artifact-registry/compare/v1.0.7...v1.1.0) (2021-08-23)


### Features

* turns on self-signed JWT feature flag ([#74](https://www.github.com/googleapis/nodejs-artifact-registry/issues/74)) ([a4c3f55](https://www.github.com/googleapis/nodejs-artifact-registry/commit/a4c3f556afe45914ce303ac665e56487f6ed8c5d))
---


This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [ts-loader](https://togithub.com/TypeStrong/ts-loader) | devDependencies | major | [`^6.2.1` -> `^7.0.0`](https://renovatebot.com/diffs/npm/ts-loader/6.2.2/7.0.0) |

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### Release Notes

<details>
<summary>TypeStrong/ts-loader</summary>

### [`v7.0.0`](https://togithub.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md#v700)

[Compare Source](https://togithub.com/TypeStrong/ts-loader/compare/v6.2.2...v7.0.0)

-   [Project reference support enhancements](https://togithub.com/TypeStrong/ts-loader/pull/1076) - thanks [@&#8203;sheetalkamat](https://togithub.com/sheetalkamat)!
-   Following the end of life of Node 8, `ts-loader` no longer supports Node 8 **BREAKING CHANGE**

</details>

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…t have to have durations (#74)

Right now, duration is a required field of RequestProfile. This does not make sense because heap profiles do not need to have a duration.

Prior to this change, when attempting to collect heap profiles, the following error would occur:
```
Error collecting and uploading profile: ApiError: Request contains an invalid argument
```

…t have to have durations (#74)

Right now, duration is a required field of RequestProfile. This does not make sense because heap profiles do not need to have a duration.

Prior to this change, when attempting to collect heap profiles, the following error would occur:
```
Error collecting and uploading profile: ApiError: Request contains an invalid argument
```

* chore: setup nighty build in CircleCI

* chore: setup nighty build in CircleCI