Bump actions/checkout action to v6 (#165)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/build.yml

@@ -9,7 +9,7 @@ jobs:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Install dependencies
       run: pipx install hatch
     - name: Lint and typecheck
@@ -34,7 +34,7 @@ jobs:
         id-token: write
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Install dependencies
       shell: bash
       run: pipx install hatch

.github/workflows/documentation.yml

@@ -27,7 +27,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v6
       with:

.github/workflows/labeler.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Run Labeler
         uses: crazy-max/[email protected]