Remove support for PyTest 8.2.2

PyTest 8.2.2 broke support for unittest retries, which should be fixed
in 8.2.3 (see pytest-dev/pytest#12424).

Author: ramosbugs

setup.cfg

@@ -37,8 +37,10 @@ package_dir=
 packages =
     pytest_unflakable
 python_requires = >=3.8
+# NB: PyTest 8.2.2 broke support for unittest retries, which should be fixed in 8.2.3 (see
+# https://github.com/pytest-dev/pytest/issues/12424).
 install_requires =
-    pytest>=6.2.0
+    pytest>=6.2.0,!=8.2.2
     requests>=2.19.0
 
 [options.extras_require]