Change expire TTL cla-{stage}-store for active_signature:{uuid} keys

Signed-off-by: Lukasz Gryglicki <lgryglicki@cncf.io>

Author: lukaszgryglicki

cla-backend/cla/models/dynamo_models.py

@@ -3840,8 +3840,8 @@ def exists(self, key):
             return False
 
     def get_expire_timestamp(self):
-        # helper function to set store item ttl: 7 days
-        exp_datetime = datetime.datetime.now() + datetime.timedelta(days=7)
+        # helper function to set store item ttl: 45 minutes
+        exp_datetime = datetime.datetime.now() + datetime.timedelta(minutes=45)
         return exp_datetime.timestamp()