update test matrix

Author: blink1073

.github/workflows/test.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.7"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13", "pypy-3.10"]
       fail-fast: true
     steps:
       - uses: actions/checkout@v2