ci: add dart setup to deployment

Author: deandreamatias

.github/workflows/base.yaml

@@ -97,6 +97,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           fetch-depth: 1 # Use shallow clone for faster checkout
+      - uses: dart-lang/setup-dart@v1
       - name: Setup Flutter
         uses: kuhnroyal/flutter-fvm-config-action/setup@v3
         with: