4088 [url_launcher] Fix test button check for iOS 15 (cla: yes, waiting for tree to go green, p: url_launcher, platform-ios)

4089 [image_picker] Updated pickImage and pickVideo docs to expose the possible errors that can be thrown (cla: yes, waiting for tree to go green, p: image_picker)

4090 Update .ci.yaml documentation link (cla: yes, waiting for tree to go green)

4091 [ci] Set release action owner as flutter (cla: yes, waiting for tree to go green)

4092 [in_app_purchase] Add documentation for price change confirmations (cla: yes, waiting for tree to go green, p: in_app_purchase)