testing: restore integration testing with pytest-bdd

The problem was fixed.

testing/plugins_integration/requirements.txt

@@ -1,9 +1,7 @@
 anyio[curio,trio]==4.3.0
 django==5.0.4
 pytest-asyncio==0.23.6
-# Temporarily not installed until pytest-bdd is fixed:
-# https://github.com/pytest-dev/pytest/pull/11785
-# pytest-bdd==7.0.1
+pytest-bdd==7.1.2
 pytest-cov==5.0.0
 pytest-django==4.8.0
 pytest-flakes==4.0.5