Merge pull request #193 from fluttercommunity/dependabot/github_actions/actions/checkout-3

Bump actions/checkout from 2 to 3

Author: juliansteenbakker

.github/workflows/flutter_format.yml

@@ -7,7 +7,7 @@ jobs:
   analysis:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v2
         with:
           distribution: 'temurin'
@@ -22,7 +22,7 @@ jobs:
   formatting:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v2
         with:
           distribution: 'temurin'