Bump actions/checkout from 5 to 6 in the github-actions group

Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `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
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/amd64_linux_bazel.yml

@@ -26,7 +26,7 @@ jobs:
     name: Linux•Bzl•C++${{matrix.cpp.version}}•Py${{matrix.python.version}}•${{matrix.examples.name}}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Check Java
         run: java -version
       - name: Setup Python
@@ -67,4 +67,4 @@ jobs:
     runs-on: ubuntu-latest
     needs: native
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6

.github/workflows/amd64_macos_bazel.yml

@@ -29,7 +29,7 @@ jobs:
     name: MacOS•Bzl•C++${{matrix.cpp.version}}•Py${{matrix.python.version}}•${{matrix.examples.name}}
     runs-on: macos-13 # last macos intel based runner
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set Java to OpenJDK 17 (Temurin)
         uses: actions/setup-java@v5
         with:
@@ -68,4 +68,4 @@ jobs:
     runs-on: ubuntu-latest
     needs: native
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6

.github/workflows/amd64_windows_bazel.yml

@@ -26,7 +26,7 @@ jobs:
     name: Windows•Bzl•C++${{matrix.cpp.version}}•Py${{matrix.python.version}}•${{matrix.examples.name}}
     runs-on: windows-2022
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup Python
         uses: actions/setup-python@v6
         with:
@@ -62,4 +62,4 @@ jobs:
     runs-on: ubuntu-latest
     needs: native
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6

.github/workflows/arm64_macos_bazel.yml

@@ -29,7 +29,7 @@ jobs:
     name: MacOS•Bzl•C++${{matrix.cpp.version}}•Py${{matrix.python.version}}•${{matrix.examples.name}}
     runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set Java to OpenJDK 17 (Temurin)
         uses: actions/setup-java@v5
         with:
@@ -68,4 +68,4 @@ jobs:
     runs-on: ubuntu-latest
     needs: native
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6

.github/workflows/release.yml

@@ -14,7 +14,7 @@ jobs:
     env:
       GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: |
           gh release create "${GITHUB_REF_NAME}" \
             --generate-notes --latest --verify-tag \