Run mypy_primer in 3.13 (python#18542)

I think this is needed for homeassistant

Author: hauntsaninja

.github/workflows/mypy_primer.yml

@@ -39,7 +39,7 @@ jobs:
           persist-credentials: false
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install dependencies
         run: |
           python -m pip install -U pip