ci: use very_good_workflows for pana (#54)

.github/workflows/main.yaml

@@ -22,20 +22,4 @@ jobs:
         run: dart analyze .
 
   pana:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: subosito/flutter-action@v2
-
-      - name: Install Dependencies
-        run: |
-          flutter packages get
-          flutter pub global activate pana
-
-      - name: Verify Pub Score
-        run: |
-          PANA=$(pana . --no-warning); PANA_SCORE=$(echo $PANA | sed -n "s/.*Points: \([0-9]*\)\/\([0-9]*\)./\1\/\2/p")
-          echo "score: $PANA_SCORE"
-          IFS='/'; read -a SCORE_ARR <<< "$PANA_SCORE"; SCORE=SCORE_ARR[0]; TOTAL=SCORE_ARR[1]
-          if (( $SCORE < $TOTAL )); then echo "minimum score not met!"; exit 1; fi
+    uses: VeryGoodOpenSource/very_good_workflows/.github/workflows/pana.yml@v1