Add PyPy 3.10 and 3.11 to CI matrix

Update the GitHub Actions workflow to include PyPy 3.10 and 3.11 in the test
matrix, ensuring compatibility testing across more Python implementations.

Amp-Thread-ID: https://ampcode.com/threads/T-f36ee695-71eb-4f48-b2de-5a01b900d5c1
Co-authored-by: Amp <amp@ampcode.com>

Author: dahlia

.github/workflows/main.yaml

@@ -13,6 +13,8 @@ jobs:
         - "3.10"
         - "3.9"
         - "3.8"
+        - pypy3.11
+        - pypy3.10
         - pypy3.9
         - pypy3.8
     runs-on: ubuntu-latest