chore(deps): pin dependencies (#23304)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.github/workflows/build-mobile.yml

@@ -173,7 +173,7 @@ jobs:
           persist-credentials: false
 
       - name: Setup Flutter SDK
-        uses: subosito/flutter-action@v2
+        uses: subosito/flutter-action@fd55f4c5af5b953cc57a2be44cb082c8f6635e8e # v2
         with:
           channel: 'stable'
           flutter-version-file: ./mobile/pubspec.yaml
@@ -194,7 +194,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.2'
+          ruby-version: '3.4.7'
           working-directory: ./mobile/ios
 
       - name: Install Fastlane
@@ -259,7 +259,7 @@ jobs:
           security delete-keychain build.keychain || true
 
       - name: Upload IPA artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
         with:
           name: ios-release-ipa
           path: mobile/ios/Runner.ipa