Use 3.13 rc

.github/workflows/run-tests.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13-dev']
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
         os: [ubuntu-latest, macOS-latest, windows-latest]
         # Python 3.8 and 3.9 do not run on m1 hardware which is now standard for
         # macOS-latest.
@@ -32,6 +32,8 @@ jobs:
         uses: actions/setup-python@82c7e631bb3cdc910f68e0081d67478d79c6982d
         with:
           python-version: '${{ matrix.python-version }}'
+          cache: 'pip'
+          allow-prereleases: true
       - name: Install dependencies
         run: |
           python scripts/ci/install