Bump redis from 5.2.0 to 5.2.1 (#17110)

(cherry picked from commit a6af84e)

requirements-optional.txt

@@ -1,6 +1,6 @@
 # For running tests and checking code quality using these modules.
 pytest-cov==6.0.0
-redis==5.2.0
+redis==5.2.1
 pre-commit==4.0.1
 ruff==0.7.2