Bump actions/checkout from 4.2.2 to 6.0.0 (#130)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4.2.2 to 6.0.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4.2.2...v6.0.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/ci.yaml

@@ -13,7 +13,7 @@ jobs:
     name: Run linters
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4.2.2
+    - uses: actions/checkout@v6.0.0
     - uses: actions/setup-python@v5
       with:
         python-version: 3.11
@@ -44,7 +44,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4.2.2
+      uses: actions/checkout@v6.0.0
     - name: Setup Python ${{ matrix.pyver }}
       uses: actions/setup-python@v5
       with:
@@ -84,7 +84,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout
-      uses: actions/checkout@v4.2.2
+      uses: actions/checkout@v6.0.0
       with:
         fetch-depth: 0
     - name: Install build

.github/workflows/codeql.yml

@@ -25,7 +25,7 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4.2.2
+      uses: actions/checkout@v6.0.0
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v4