Pin pytest to 8.3 due to compatibility issues with pytest-factoryboy

See:

 - pytest-dev/pytest-factoryboy#232

Author: marcospri

tox.ini

@@ -36,6 +36,7 @@ deps =
     lint,tests: pytest-mock
     lint,tests,functests: pytest
     lint,tests,functests: h-testkit
+    tests,functests: pytest<8.4
     tests: pytest-cov
     coverage: coverage[toml]
     lint,tests,functests: factory-boy