chore(deps): bump actions/checkout from 2 to 3 (#80)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Felix Angelov <[email protected]>

Author: dependabot[bot]

.github/workflows/dart_package.yml

@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1

.github/workflows/flutter_package.yml

@@ -50,7 +50,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: 🐦 Setup Flutter
         uses: subosito/flutter-action@v2

.github/workflows/pana.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: 🐦 Setup Flutter
         uses: subosito/flutter-action@v2