Bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...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>

.github/workflows/check-dist.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - uses: ./.github/actions/install-dependencies
 

.github/workflows/ci.yml

@@ -13,7 +13,7 @@ jobs:
   ci:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
       - run: npm run style:check
       - run: npm test

.github/workflows/codeql-analysis.yml

@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/integration.yml

@@ -14,7 +14,7 @@ jobs:
     name: 'Integration test: return'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - id: output-set
         uses: ./
         with:
@@ -34,7 +34,7 @@ jobs:
     name: 'Integration test: relative-path require'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - id: relative-require
         uses: ./
         with:
@@ -52,7 +52,7 @@ jobs:
     name: 'Integration test: npm package require'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
       - id: npm-require
         uses: ./
@@ -72,7 +72,7 @@ jobs:
     name: 'Integration test: GraphQL previews option'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
       - id: previews-default
         name: Default previews not set
@@ -125,7 +125,7 @@ jobs:
     name: 'Integration test: user-agent option'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
       - id: user-agent-default
         name: Default user-agent not set
@@ -182,7 +182,7 @@ jobs:
     name: "Integration test: debug option (runner.debug mode ${{ matrix.environment && 'enabled' || 'disabled' }})"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
       - id: debug-default
         name: Default debug not set
@@ -256,7 +256,7 @@ jobs:
     name: 'Integration test: base-url option'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/install-dependencies
 
       - id: base-url-default

.github/workflows/licensed.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Check licenses
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0 # prefer to use a full fetch for licensed workflows
       - uses: ruby/setup-ruby@354a1ad156761f5ee2b7b13fa8e09943a5e8d252 # v1.229.0

.github/workflows/publish-immutable-actions.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checking out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Publish
         id: publish
         uses: actions/publish-immutable-action@0.0.4

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

@@ -13,7 +13,7 @@ jobs:
   pull-request-test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: ./
         with:
           script: |