build(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/build_cc.yml

@@ -29,7 +29,7 @@ jobs:
         - variant: clang
           dp_variant: clang
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: '3.11'

.github/workflows/build_wheel.yml

@@ -57,7 +57,7 @@ jobs:
             platform_id: manylinux_aarch64
             dp_variant: cpu
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # https://github.com/pypa/setuptools_scm/issues/480
           fetch-depth: 0
@@ -90,7 +90,7 @@ jobs:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Build sdist
@@ -131,7 +131,7 @@ jobs:
     steps:
       - name: Delete huge unnecessary tools folder
         run: rm -rf /opt/hostedtoolcache
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/download-artifact@v6
         with:
           path: source/install/docker/dist

.github/workflows/codeql.yml

@@ -30,7 +30,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: '3.11'

.github/workflows/copilot-setup-steps.yml

@@ -30,7 +30,7 @@ jobs:
     # If you do not check out your code, Copilot will do this for you.
     steps:
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6

.github/workflows/package_c.yml

@@ -28,7 +28,7 @@ jobs:
             tensorflow_version: ">=2.5.0,<2.15"
             filename: libdeepmd_c_cu11.tar.gz
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Package C library
@@ -56,7 +56,7 @@ jobs:
     needs: [build_c]
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Download artifact
         uses: actions/download-artifact@v6
         with:

.github/workflows/test_cc.yml

@@ -19,7 +19,7 @@ jobs:
       matrix:
         check_memleak: [true, false]
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: '3.11'

.github/workflows/test_cuda.yml

@@ -25,7 +25,7 @@ jobs:
     steps:
     - name: Make sudo and git work
       run: apt-get update && apt-get install -y sudo git
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: '3.11'

.github/workflows/test_python.yml

@@ -22,7 +22,7 @@ jobs:
         python: ["3.9", "3.12"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python }}

.github/workflows/todo.yml

@@ -8,7 +8,7 @@ jobs:
     if: github.repository_owner == 'deepmodeling'
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Run tdg-github-action
       uses: ribtoks/tdg-github-action@master
       with: