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](https://github.com/actions/checkout/compare/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>

.github/workflows/codeql-analysis.yml

@@ -37,7 +37,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL

.github/workflows/docker.yml

@@ -74,7 +74,7 @@ jobs:
     needs:
       - tag
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ env.GIT_TAG }}
 

.github/workflows/l10n-gettext-extract.yml

@@ -19,12 +19,12 @@ jobs:
         run: |
           yarn global add grunt-cli
       - name: Clone l10n repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: mozilla/fxa-content-server-l10n
           path: 'fxa-l10n'
       - name: Clone FxA code repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 2
           path: 'fxa-code'

.github/workflows/pull-legal-docs.yml

@@ -14,13 +14,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Clone FxA code repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: fxa
           fetch-depth: 2
 
       - name: Clone legal-docs repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: mozilla/legal-docs
           ref: prod

.github/workflows/tag-release.yml

@@ -17,7 +17,7 @@ jobs:
         shell: bash
 
       - name: Check out code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Fetch all git tags
         run: git fetch --tags origin

.github/workflows/upload-assets-to-cdn.yml

@@ -21,7 +21,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Configure Stage AWS credentials
         uses: aws-actions/configure-aws-credentials@master