Drop pypy2.7

Author: gliptak

.github/workflows/pypy.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [pypy2.7, pypy3.9, "pypy3.10"]
+        python-version: [pypy3.9, "pypy3.10"]
 
     name: ${{ matrix.python-version }}