Re-introduce prototype_build_details_comment refactoring for FAD (#639)

Author: AliSoftware

CHANGELOG.md

@@ -6,7 +6,8 @@
 
 ### Breaking Changes
 
-_None_
+- The `prototype_build_details_comment` action now relies on the `lane_context` of `firebase_app_distribution` instead of the one from `appcenter_upload` for the implicit metadata and download URL to use in the comment.
+  This is in the context of us moving from App Center (which will be shut down in March 2025) to Firebase App Distribution as our primary mechanism to distribute prototype builds. [#630]
 
 ### New Features
 
@@ -28,7 +29,7 @@ _None_
 
 ### Internal Changes
 
-- The library now uses immutable literals, via `# frozen_strings_literal: true`. This may result in runtime issues that we will address ASAP once discovered [#626]
+- The library now uses immutable literals, via `# frozen_strings_literal: true`. This may result in runtime issues that we will address ASAP once discovered. [#626]
 
 ## 12.4.0
 
@@ -39,7 +40,7 @@ _None_
 
 ### Bug Fixes
 
-- Remove period from "Update draft release notes..." commit message [#622]
+- Remove period from "Update draft release notes..." commit message. [#622]
 
 ## 12.3.4
 

MIGRATION.md

@@ -1,5 +1,11 @@
 # Migration Instructions for Major Releases
 
+## From 12.x to 13.0.0
+
+- The `prototype_build_details_comment` action have been updated to work with Firebase App Distribution instead of App Center [#630].
+   - If you were using the `prototype_build_details_comment` action in concert with the `appcenter_upload` action, you'll need to migrate to use `firebase_app_distribution` action instead, then adjust the parameters for `prototype_build_details_comment` accordingly (mostly removing the `appcenter_upload`-related ones like `app_center_org_name`).
+   - If you were using the `prototype_build_details_comment` action out of the context of App Center but with a `download_url` instead (e.g. Cloudfront URL), no update of the call site is needed.
+
 ## From 11.x to 12.0.0
 
 - `android_current_branch_is_hotfix` no longer supports the `build_gradle_path` parameter. Convert the project to define `versionName` and `versionCode` in `version.properties` and call `android_current_branch_is_hotfix` with `version_properties_path`.