Explicitly specify Python version.

Author: ubernostrum

.github/workflows/ci.yml

@@ -76,7 +76,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version-file: .python-version-default
+          python-version: "3.12"
       - uses: hynek/setup-cached-uv@v2
       - run: uv pip install --system --upgrade coverage[toml]
       - uses: actions/download-artifact@v4