4342 [camera_web] Release the camera stream used to request video and audio permissions (cla: yes, waiting for tree to go green, p: camera, platform-web)

4346 [google_sign_in_web] Update URL to google_sign_in package in README (cla: yes, waiting for tree to go green, p: google_sign_in, platform-web, last mile)

4352 [in_app_purchase] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-ios)

4353 [ios_platform_images] Bump minimum Flutter version and iOS deployment target (cla: yes, waiting for tree to go green, p: ios_platform_images, platform-ios)