Bump actions/checkout from 6 to 7 (#468)

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  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>
Co-authored-by: Casper Welzel Andersen <43357585+CasperWA@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/cd_dependencies.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         ref: master
         fetch-depth: 0

.github/workflows/ci_tests.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Checkout ${{ github.repository }}
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
@@ -91,7 +91,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Python 3.10
       uses: actions/setup-python@v6

.github/workflows/ci_update_pre-commit.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         ref: master