ci: test on pypy

Signed-off-by: Frost Ming <[email protected]>

Author: frostming

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.9", "pypy3.10"]
 
     steps:
       - uses: actions/checkout@v4