deprecating SESSION_USE_SIGNER

UPDATING.md

@@ -35,6 +35,9 @@ assists people when migrating to a new version.
  files for production use cases! While we never really supported
  or should have tried to support docker-compose for production use cases, we now actively
  have taken a stance against supporting it. See the PR for details.
+- [27697](https://github.com/apache/superset/pull/27697) [minor] flask-session bump leads to them
+ deprecating `SESSION_USE_SIGNER`, check your configs as this flag won't do anything moving
+ forward.
 
 ### Breaking Changes
 

superset/config.py

@@ -1474,7 +1474,6 @@ def EMAIL_HEADER_MUTATOR( # pylint: disable=invalid-name,unused-argument
 # from flask_session import RedisSessionInterface
 #
 # SESSION_SERVER_SIDE = True
-# SESSION_USE_SIGNER = True
 # SESSION_TYPE = "redis"
 # SESSION_REDIS = Redis(host="localhost", port=6379, db=0)
 #
@@ -1704,7 +1703,7 @@ class ExtraDynamicQueryFilters(TypedDict, total=False):
  try:
  # pylint: disable=import-error,wildcard-import,unused-wildcard-import
  import superset_config
- from superset_config import * # type: ignore
+ from superset_config import *
 
  print(f"Loaded your LOCAL configuration at [{superset_config.__file__}]")
  except Exception: