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

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] <support@github.com>

Author: dependabot[bot]

.github/workflows/issue_opened.yml

@@ -12,7 +12,7 @@ jobs:
     permissions:
       issues: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Parse bug report form
         uses: stefanbuck/github-issue-parser@v3

.github/workflows/on-commit-main.yml

@@ -13,7 +13,7 @@ jobs:
     name: Analyze
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -29,7 +29,7 @@ jobs:
     name: Test
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -84,7 +84,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -122,7 +122,7 @@ jobs:
     needs: [ test, analyze, package-score ]
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Java
         uses: actions/setup-java@v5
         with:
@@ -148,7 +148,7 @@ jobs:
   #      run:
   #        working-directory: ./example
   #    steps:
-  #      - uses: actions/checkout@v5
+  #      - uses: actions/checkout@v6
   #      - uses: subosito/flutter-action@v2
   #        with:
   #          flutter-version: ${{ matrix.sdk }}
@@ -173,7 +173,7 @@ jobs:
         working-directory: ./example
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:

.github/workflows/on-pull-request.yml

@@ -13,7 +13,7 @@ jobs:
     name: Analyze
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -29,7 +29,7 @@ jobs:
     name: Test
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -84,7 +84,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:
@@ -128,7 +128,7 @@ jobs:
     name: Build Android
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Java
         uses: actions/setup-java@v5
         with:
@@ -153,7 +153,7 @@ jobs:
   #      run:
   #        working-directory: ./example
   #    steps:
-  #      - uses: actions/checkout@v5
+  #      - uses: actions/checkout@v6
   #      - uses: subosito/flutter-action@v2
   #        with:
   #          flutter-version: ${{ matrix.sdk }}
@@ -177,7 +177,7 @@ jobs:
         working-directory: ./example
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with:

.github/workflows/update-ios-pods.yml

@@ -14,7 +14,7 @@ jobs:
         working-directory: ./example
     steps:
       - name: Checkout project
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Flutter
         uses: subosito/flutter-action@v2
         with: