ci: restore cache properly

Author: lishaduck

.github/workflows/ci.yaml

@@ -141,7 +141,8 @@ jobs:
             packages/*/lib/src/app/*.gm.dart
             packages/*/lib/src/l10n/app_localizations.dart
             packages/*/lib/src/l10n/app_localizations_*.dart
-          key: ${{ runner.os }}-${{ steps.flutter.outputs.CHANNEL }}-dart-${{ hashFiles('**/build.yaml') }}
+          key: generated-${{ steps.flutter.outputs.CHANNEL }}-${{ runner.os }}-${{ hashFiles('**/build.yaml') }}-${{ hashFiles('packages/*/lib/**.dart') }}
+          restore-keys: generated-${{ steps.flutter.outputs.CHANNEL }}-${{ runner.os }}-
       - name: 📦 Install dependencies
         uses: bluefireteam/melos-action@c7dcb921b23cc520cace360b95d02b37bf09cdaa # v3
         with: