Merge pull request #515 from codeigniter4/dependabot/github_actions/actions/setup-python-4

chore(deps): bump actions/setup-python from 2 to 4

Author: paulbalandan

.github/workflows/docs.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: 3.x
       - run: pip install mkdocs-material