Apply suggestions from code review

Author: Avasam

setup.cfg

@@ -47,7 +47,9 @@ testing =
 	pytest-cov; \
 		# coverage seems to make PyPy extremely slow
 		python_implementation != "PyPy"
-	pytest-mypy
+	pytest-mypy >= 0.9.1; \
+		# workaround for https://github.com/jaraco/skeleton/issues/22
+		python_implementation != "PyPy"
 	pytest-enabler >= 2.2
 	# workaround for pypa/setuptools#3921
 	pytest-ruff >= 0.2.1; sys_platform != "cygwin"
@@ -73,7 +75,7 @@ testing =
 	jaraco.develop >= 7.21; python_version >= "3.9" and sys_platform != "cygwin"
 	pytest-home >= 0.5
 	# No Python 3.12 dependencies require importlib_metadata, but needed for type-checking since we import it directly
-	importlib_metadata; python_version >= "3.12"
+	importlib_metadata
 
 testing-integration =
 	pytest