checkout repo for file reading

Author: Preocts

.github/workflows/python-tests.yml

@@ -22,6 +22,9 @@ jobs:
     runs-on: "ubuntu-latest"
     name: "Define workflow settings"
     steps:
+      - name: "Repo checkout"
+        uses: "actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683"
+
       - name: "Define settings"
         run: |
           echo "python_version=$(<.python-version)" >> $GITHUB_OUTPUT