Merge pull request #284 from tkem/dependabot/github_actions/actions/checkout-4

Bump actions/checkout from 3 to 4

Author: tkem

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
       matrix:
         python: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.9", "pypy3.10"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python }}