Check if pypy works

Author: rhpvorderman

.github/workflows/ci.yml

@@ -61,6 +61,9 @@ jobs:
           - "3.8"
           - "3.9"
           - "3.10"
+          - "pypy-3.7"
+          - "pypy-3.8"
+          - "pypy-3.9"
         os: ["ubuntu-latest"]
         include:
           - os: "macos-latest"