4551 [url_launcher] Switch to new analysis options (cla: yes, p: url_launcher, platform-ios, platform-android, platform-windows, platform-macos, platform-linux, platform-web)

4553 [webview_flutter] Clean up prefer_const_constructor ignore statements (cla: yes, waiting for tree to go green, p: webview_flutter, platform-android)

4557 [webview_flutter] Add Android implementations for new cookie manager, to allow setting cookies directly and on webview creation.  (cla: yes, waiting for tree to go green, p: webview_flutter, platform-android)

4560 [in_app_purchase] Fix upgrading subscription by deferred proration mode on android. (cla: yes, waiting for tree to go green, p: in_app_purchase, platform-android)