ci: bump the github-actions group with 2 updates

Bumps the github-actions group with 2 updates: [actions/checkout](https://github.com/actions/checkout) and [actions/cache](https://github.com/actions/cache).


Updates `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)

Updates `actions/cache` from 5 to 6
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/dockerhub-description.yml

@@ -10,7 +10,7 @@ jobs:
   update-description:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: peter-evans/dockerhub-description@v5
         with:

.github/workflows/main.yml

@@ -24,15 +24,15 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
 
     - name: Cache pip packages
-      uses: actions/cache@v5
+      uses: actions/cache@v6
       with:
         path: ~/.cache/pip
         key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/requirements*.txt') }}
@@ -68,7 +68,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
 
     - name: Set up Docker Buildx
       uses: docker/setup-buildx-action@v4
@@ -112,7 +112,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         fetch-depth: 0
 
@@ -159,7 +159,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v6
+      uses: actions/checkout@v7
       with:
         fetch-depth: 0