Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

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

.github/workflows/galaxy.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out the codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python 3
         uses: actions/setup-python@v4

.github/workflows/molecule.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Check out the codebase
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python 3
         uses: actions/setup-python@v4
@@ -52,7 +52,7 @@ jobs:
     steps:
       - name: Check out the codebase
         if: ${{ !(contains(matrix.scenario, 'plus')) || (env.NGINX_CRT != 0 && env.NGINX_KEY != 0) }}
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Set up Python 3
         if: ${{ !(contains(matrix.scenario, 'plus')) || (env.NGINX_CRT != 0 && env.NGINX_KEY != 0) }}