test: ci downgrade analysis

.github/workflows/run_ci_downgrade_analyze.yml

@@ -0,0 +1,28 @@
+name: Run CI
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 0'  # every sunday at midnight
+
+jobs:
+  test:
+    name: Test on ${{ matrix.os }} / ${{ matrix.dart }}
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        working-directory: .
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        dart: [stable]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dart-lang/[email protected]
+        with:
+          sdk: ${{ matrix.dart }}
+      - run: dart --version
+      - run: dart pub global activate dev_test
+      - run: dart pub global run dev_test:run_ci --pub-downgrade --analyze --no-override --recursive