chore: bump actions/checkout from 5 to 6 (#397)

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/dart_package.yml

@@ -80,7 +80,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1

.github/workflows/dart_pub_publish.yml

@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1

.github/workflows/flutter_package.yml

@@ -76,7 +76,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🐦 Setup Flutter
         uses: subosito/flutter-action@v2

.github/workflows/flutter_pub_publish.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🐦 Setup Flutter
         uses: subosito/flutter-action@v2

.github/workflows/license_check.yml

@@ -49,7 +49,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1

.github/workflows/mason_publish.yml

@@ -40,7 +40,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🎯 Setup Dart
         uses: dart-lang/setup-dart@v1

.github/workflows/pana.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🐦 Setup Flutter
         uses: subosito/flutter-action@v2

.github/workflows/site.yaml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: ⚙️ Setup Node
         uses: actions/setup-node@v6

.github/workflows/site_deploy.yaml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: ⚙️ Setup Node
         uses: actions/setup-node@v6

.github/workflows/spell_check.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: 📚 Git Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: 🪄 Spell Check
         uses: streetsidesoftware/cspell-action@v8