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] <[email protected]>

Author: dependabot[bot]

.github/workflows/deploy_mkdocs.yml

@@ -21,7 +21,7 @@ jobs:
     steps:
     # Checkout the repository
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
 
     - name: Setup Pages
       uses: actions/configure-pages@v5

.github/workflows/main.yml

@@ -22,7 +22,7 @@ jobs:
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
@@ -40,7 +40,7 @@ jobs:
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
@@ -65,7 +65,7 @@ jobs:
   #       os: [macos-latest]
   #   runs-on: ${{ matrix.os }}
   #   steps:
-  #     - uses: actions/checkout@v5
+  #     - uses: actions/checkout@v6
   #     - uses: actions/setup-python@v6
   #       with:
   #         python-version: ${{ matrix.python-version }}
@@ -83,7 +83,7 @@ jobs:
   #       os: [windows-latest]
   #   runs-on: ${{ matrix.os }}
   #   steps:
-  #     - uses: actions/checkout@v5
+  #     - uses: actions/checkout@v6
   #     - uses: actions/setup-python@v6
   #       with:
   #         python-version: ${{ matrix.python-version }}

.github/workflows/release.yml

@@ -16,7 +16,7 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # by default, it uses a depth of 1
           # this fetches all history so that we can read each commit
@@ -32,7 +32,7 @@ jobs:
     needs: release
     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/rename_project.yml

@@ -9,7 +9,7 @@ jobs:
     if: ${{ !contains (github.repository, '/python-project-template') }}
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           # by default, it uses a depth of 1
           # this fetches all history so that we can read each commit