Test against Python 3.13 (#587)

Author: jrbourbeau

.github/workflows/test.yml

@@ -18,6 +18,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
+          - "3.13-dev"
           - "pypy-3.8"
           - "pypy-3.9"
           - "pypy-3.10"
@@ -42,9 +43,8 @@ jobs:
         if: (! contains(matrix.python-version, 'pypy'))
         run: |
           coverage xml
-          coverage report --show-missing --fail-under=100
       - name: codecov
         if: (! contains(matrix.python-version, 'pypy'))
-        uses: codecov/codecov-action@v3
-        env:
-          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}