Bump actions/checkout from 5 to 6 (#24322)

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.

Author: dependabot[bot]

.github/workflows/autoformat.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: 'Checkout'
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
         repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/bump-global-json.yml

@@ -13,7 +13,7 @@ jobs:
     if: contains(github.event.pull_request.title, 'Update dependencies from dotnet/') && github.actor == 'dotnet-maestro[bot]'
     steps:
     - name: 'Checkout repo'
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 0
         repository: ${{ github.event.pull_request.head.repo.full_name }}

.github/workflows/localization-update.yml

@@ -15,7 +15,7 @@ jobs:
     name: '[Localization PR to main]'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       name: checkout
 
     - uses: repo-sync/pull-request@v2

.github/workflows/pwsh-ci.yml

@@ -10,7 +10,7 @@ jobs:
   test-pwsh:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Run Pester tests
       run: |
         Set-PSRepository psgallery -InstallationPolicy trusted

.github/workflows/update-single-platform-branches.yml

@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/yamllint.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
           fetch-depth: 0