Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4 to 5.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 5 to 6.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v5...v6)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* feat(library): Add polyline progress utilities to SphericalUtil

This commit introduces two new utility functions to `SphericalUtil` for calculating points and prefixes on a polyline based on a percentage of its total length. A new demo has also been added to showcase this functionality.

The key changes are:
- **`SphericalUtil.getPointOnPolyline()`**: A new function that returns a `LatLng` at a specified percentage along a given polyline.
- **`SphericalUtil.getPolylinePrefix()`**: A new function that returns a new list of `LatLng`s representing a prefix of the original polyline up to a specified percentage.
- **New Demo**: A `PolylineProgressDemoActivity` has been added to the demo application. It demonstrates how to animate progress along a polyline using the new utility functions, complete with a `SeekBar` for user control.
- **Tests**: Added comprehensive unit tests for `getPointOnPolyline` and `getPolylinePrefix` to ensure correctness and handle edge cases.

* refactor(demo): Modernize PolylineProgressDemoActivity

This commit significantly refactors the `PolylineProgressDemoActivity` to align with modern Android development practices and better showcase the library's features.

Key changes include:
- **View Binding**: Replaced `findViewById` with View Binding for type-safe and more concise access to UI components. This required enabling `viewBinding` in the demo's `build.gradle.kts`.
- **Lifecycle-Aware Coroutines**: The animation now uses `lifecycleScope`, ensuring the coroutine is automatically canceled when the Activity is destroyed, preventing memory leaks.
- **State Management**: Replaced multiple `MutableLiveData` instances with a single `LiveData<AnimationState>` data class. This creates a single source of truth for the animation's state, leading to more predictable and maintainable UI updates.
- **Code Structure and Documentation**: The code has been reorganized into smaller, more focused functions. Extensive KDoc comments have been added to explain the implementation, highlight the use of `SphericalUtil`, and document the modern Android patterns being used.

* Add missing copyright header

* chore: Add missing copyright headers

# [3.18.0](v3.17.0...v3.18.0) (2025-09-15)

### Features

* **library:** Add polyline progress utilities to SphericalUtil ([#1588](#1588)) ([686774f](686774f))