4535 Update some plugins’ targetSdkVersions to 31 (cla: yes, p: path_provider, p: shared_preferences, platform-android, p: flutter_plugin_android_lifecycle, needs tests)

p: file_selector - 2 pull request(s)

4467 update build_runner dependencies in android_intent and file_selector example (cla: yes, p: android_intent, p: file_selector, platform-web)

4468 [ci] Remove unused dep from file_selector. (cla: yes, waiting for tree to go green, p: file_selector, platform-web)

p: espresso - 2 pull request(s)