Bump actions/checkout from 5 to 6 in the actions group (#257)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -17,7 +17,7 @@ jobs:
     name: upload release to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     - uses: actions/setup-python@v6
       with:

.github/workflows/test.yml

@@ -19,7 +19,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup python
         uses: actions/setup-python@v6
         with:
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Grab the src from GH
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Install `pypa/build` PEP 517 front-end
       run: python -m pip install build
@@ -66,7 +66,7 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Setup python
         uses: actions/setup-python@v6
         with: