Bump redis from 3.3.8 to 3.3.11 in /requirements (#5564)

Bumps [redis](https://github.com/andymccurdy/redis-py) from 3.3.8 to 3.3.11.
- [Release notes](https://github.com/andymccurdy/redis-py/releases)
- [Changelog](https://github.com/andymccurdy/redis-py/blob/master/CHANGES)
- [Commits](https://github.com/andymccurdy/redis-py/compare/3.3.8...3.3.11)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

requirements/common.txt

@@ -206,9 +206,9 @@ django-redis==4.10.0 \
     --hash=sha256:f46115577063d00a890867c6964ba096057f07cb756e78e0503b89cd18e4e083
 
 # Required by django-redis
-redis==3.3.8 \
-    --hash=sha256:c504251769031b0dd7dd5cf786050a6050197c6de0d37778c80c08cb04ae8275 \
-    --hash=sha256:98a22fb750c9b9bb46e75e945dc3f61d0ab30d06117cbb21ff9cd1d315fedd3b
+redis==3.3.11 \
+    --hash=sha256:3613daad9ce5951e426f460deddd5caf469e08a3af633e9578fc77d362becf62 \
+    --hash=sha256:8d0fc278d3f5e1249967cba2eb4a5632d19e45ce5c09442b8422d15ee2c22cc2
 
 elasticsearch==7.0.5 \
     --hash=sha256:7644fa0a9ae524344185bda561826a781a5c6bd4d3eb98a24515c567aab88327 \