Merge pull request #10 from jarrpa/jarrpa/update-github-action

update github action to use stable flutter

Author: MikaPeterson

.github/workflows/main.yml

@@ -10,10 +10,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - uses: subosito/flutter-action@v1
+      - uses: subosito/flutter-action@v2
         with:
-          channel: beta
+          channel: stable
       - run: flutter pub get
-      - uses: bluefireteam/flutter-gh-pages@v7
+      - uses: bluefireteam/flutter-gh-pages@v8
         with:
           baseHref: /GreenScout/