build(deps): bump actions/checkout from 5 to 6 in the actions group

.github/workflows/ci.yml

@@ -28,7 +28,7 @@ jobs:
           - '3.13'
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}

.github/workflows/docs-preview.yml

@@ -19,7 +19,7 @@ jobs:
   build-docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
     - uses: actions/setup-python@v6

.github/workflows/docs.yml

@@ -14,7 +14,7 @@ jobs:
   build-docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         # require all of history to see all tagged versions' docs
         fetch-depth: 0
@@ -29,7 +29,7 @@ jobs:
     - name: Checkout gh-pages
       # As we already did a deploy of gh-pages above, it is guaranteed to be there
       # so check it out so we can selectively build docs below
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
           ref: gh-pages
           path: docs/_build

.github/workflows/lint.yml

@@ -8,7 +8,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.x"

.github/workflows/publish.yml

@@ -17,7 +17,7 @@ jobs:
       # Needed for GitHub releases
       contents: write
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         fetch-depth: 0
         submodules: true