Bump actions/checkout from 5 to 6 (#991)

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](https://github.com/actions/checkout/compare/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] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/connections_tests.yml

@@ -40,7 +40,7 @@ jobs:
           - 3.9
     steps:
       - name: Check out ${{ github.repository }} on disk
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.runner-python-version }}
         uses: actions/setup-python@v6
         with:
@@ -95,7 +95,7 @@ jobs:
     steps:
 
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python/Ansible and install built collection
         uses: ./.github/actions/setup-ansible-collection
@@ -164,7 +164,7 @@ jobs:
     steps:
 
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python/Ansible and install built collection
         uses: ./.github/actions/setup-ansible-collection
@@ -239,7 +239,7 @@ jobs:
     steps:
 
       - name: Check out repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Python/Ansible and install built collection
         uses: ./.github/actions/setup-ansible-collection