chore: update old branch refs

Author: adityastic

.github/workflows/flutter_upgrade.yml

@@ -56,7 +56,7 @@ jobs:
 
           PR_URL=$(gh pr create --title "chore(deps): upgrade Flutter to ${{ env.latest_flutter_version }}" \
                        --body "This PR updates Flutter version in pubspec.yaml to the latest stable release." \
-                       --base flutter_app \
+                       --base development \
                        --head $BRANCH_NAME)
 
           # Close and reopen the PR to trigger workflows

README.md

@@ -23,7 +23,7 @@ The Badge Magic Android app lets you create moving text and draw clipart for LED
 
 ## Download
 
-* [Latest Release Build](https://github.com/fossasia/badgemagic-app/raw/apk/badge-magic-flutter_app-release.apk) in the apk branch
+* [Latest Release Build](https://github.com/fossasia/badgemagic-app/raw/apk/badge-magic-development-release.apk) in the apk branch
 
 ## Permissions
 * **Bluetooth**: For sending org.fossasia.badgemagic.data to the badge.