pytest-runner not required

[pgajdos]

Deprecated pytest-runner is not necessary for running the testsuite.

[0-wiz-0]

--- setup.py.orig       2024-08-10 06:40:00.112856469 +0000
+++ setup.py
@@ -54,7 +54,6 @@ for key, reqs in extras_require.items():
     extras_require['all'].extend(reqs)

 setup_requires = [
-    'pytest-runner>=2.7',
     'setuptools_scm>=3.1.0',
 ]