[camera_android, camera_android_camerax, camera_avfoundation] Add setJpegImageQuality

[Bolling88]

Implements the setJpegImageQuality API (landed in the platform interface via #11454) across all camera platform implementation packages, allowing control of JPEG compression quality (1-100) for still image capture.

This is the follow-up implementation PR as requested in #11155; it does not include camera_platform_interface changes. The app-facing camera package will be submitted in a separate PR after these implementation packages are published.

Packages changed:

• camera_android
• camera_android_camerax
• camera_avfoundation

Part of flutter/flutter#183229

Pre-Review Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
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Footnotes

1. Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling. ↩ ↩²

[gemini-code-assist]

Code Review

This pull request adds the setJpegImageQuality method to the CameraController and implements it across the Android (Camera2 and CameraX) and iOS (AVFoundation) platform packages. Review feedback identifies a potential ClassCastException in the Android Camera2 implementation due to an incorrect type cast, the loss of flashMode state when recreating the ImageCapture use case in CameraX, and the unintended discarding of capture configurations in the iOS implementation.

[Bolling88]

@bparrishMines This is the new PR with only the platform implementation changes as requested. The platform interface was already landed in #11454. The app-facing camera package will follow after these are published.

[okorohelijah]

@hellohuanlin friendly ping from triage

[hellohuanlin]

i think i have reviewed the combined PR and approved it, so carrying over the stamp here (for iOS part only)