Merge e2870db626 into ee2b3813b2

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/cla.yml

@@ -10,7 +10,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:

.github/workflows/deploy.yml

@@ -24,7 +24,7 @@ jobs:
       GITHUB_SHA: ${{ github.sha }}
       DEPLOYED_URL: https://ci-builds.cesium.com/cesium/${{ github.ref_name }}/
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:

.github/workflows/dev.yml

@@ -11,7 +11,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -32,7 +32,7 @@ jobs:
       AWS_REGION: us-east-1
       BRANCH: ${{ github.ref_name }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -49,7 +49,7 @@ jobs:
   release-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -65,7 +65,7 @@ jobs:
   node-20:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 20
         uses: actions/setup-node@v6
         with:

.github/workflows/prod.yml

@@ -7,7 +7,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:
@@ -32,7 +32,7 @@ jobs:
       GITHUB_REPO: ${{ github.repository }}
       GITHUB_SHA: ${{ github.sha }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with:

.github/workflows/sandcastle-dev.yml

@@ -16,7 +16,7 @@ jobs:
       GITHUB_REPO: ${{ github.repository }}
       GITHUB_SHA: ${{ github.sha }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: install node 22
         uses: actions/setup-node@v6
         with: