Fix skipping build testenv on PyPy 3.6 and 3.7

Author: domdfcoding

repo_helper/files/ci_cd.py

@@ -207,7 +207,7 @@ def get_gh_actions_matrix(self) -> Dict[str, Tuple[str, Optional[str], bool]]:
 			else:
 				envs = [tox_py_version]
 
-			if not (py_version in {"3.6", "pypy3.6", "3.7", "pypy3.7"} and config["use_flit"]):
+			if not (py_version in {"3.6", "pypy36", "3.7", "pypy37"} and config["use_flit"]):
 				envs.append("build")
 
 			output[str(gh_py_version)] = (','.join(envs), None, metadata["experimental"])