[6.14.z] Bump pytest-cov from 4.1.0 to 5.0.0 (#14504)

requirements-optional.txt

@@ -1,6 +1,6 @@
 # For running tests and checking code quality using these modules.
 flake8==7.0.0
-pytest-cov==4.1.0
+pytest-cov==5.0.0
 redis==5.0.3
 pre-commit==3.6.2