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/llvm-build-bump-pr.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Fetch LLVM current release tag name from local
         run: |
@@ -89,7 +89,7 @@ jobs:
           pip install pyinstaller
 
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: ${{ env.LLVM_REPO }}
           ref: ${{ needs.stage1.outputs.LLVM_LATEST_RELEASE_TAG_NAME }}
@@ -314,7 +314,7 @@ jobs:
           pip install pyinstaller
 
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: ${{ env.LLVM_REPO }}
           ref: ${{ needs.stage1.outputs.LLVM_LATEST_RELEASE_TAG_NAME }}
@@ -397,7 +397,7 @@ jobs:
           pip install pyinstaller
 
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: ${{ env.LLVM_REPO }}
           ref: ${{ needs.stage1.outputs.LLVM_LATEST_RELEASE_TAG_NAME }}
@@ -458,7 +458,7 @@ jobs:
 
     steps:
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Download artifacts for clang-format-git
         uses: actions/download-artifact@v6

.github/workflows/test-cross-platform.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up node
         uses: actions/setup-node@v5
@@ -149,7 +149,7 @@ jobs:
 
     steps:
       - name: Set up checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3