4369 [flutter_plugin_tools] Allow overriding breaking change check (cla: yes, waiting for tree to go green)

4370 [in_app_purchase] Ensure the introductoryPriceMicros field is transported as a String. (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-android)

4371 [camera_web] Update usage documentation (cla: yes, p: camera, platform-web)

4372 Add false secret lists, and enforce ordering (cla: yes, waiting for tree to go green, p: google_maps_flutter, p: google_sign_in, platform-web)

4373 [flutter_plugin_tools] Check licenses in Kotlin (cla: yes, p: shared_preferences, platform-android)