Bump redis from 3.4.1 to 3.5.3 in /requirements

[dependabot]

Bumps redis from 3.4.1 to 3.5.3.

Changelog

Sourced from redis's changelog.

• 3.5.3 (June 1, 2020)
  • Restore try/except clauses to del methods. These will be removed in 4.0 when more explicit resource management if enforced. #1339
  • Update the master_address when Sentinels promote a new master. #847
  • Update SentinelConnectionPool to not forcefully disconnect other in-use connections which can negatively affect threaded applications. #1345
• 3.5.2 (May 14, 2020)
  • Tune the locking in ConnectionPool.get_connection so that the lock is not held while waiting for the socket to establish and validate the TCP connection.
• 3.5.1 (May 9, 2020)
  • Fix for HSET argument validation to allow any non-None key. Thanks @​AleksMat, #1337, #1341
• 3.5.0 (April 29, 2020)
  • Removed exception trapping from del methods. redis-py objects that hold various resources implement del cleanup methods to release those resources when the object goes out of scope. This provides a fallback for when these objects aren't explicitly closed by user code. Prior to this change any errors encountered in closing these resources would be hidden from the user. Thanks @​jdufresne. #1281
  • Expanded support for connection strings specifying a username connecting to pre-v6 servers. #1274
  • Optimized Lock's blocking_timeout and sleep. If the lock cannot be acquired and the sleep value would cause the loop to sleep beyond blocking_timeout, fail immediately. Thanks @​clslgrnc. #1263
  • Added support for passing Python memoryviews to Redis command args that expect strings or bytes. The memoryview instance is sent directly to the socket such that there are zero copies made of the underlying data during command packing. Thanks @​Cody-G. #1265, #1285
  • HSET command now can accept multiple pairs. HMSET has been marked as deprecated now. Thanks to @​laixintao #1271
  • Don't manually DISCARD when encountering an ExecAbortError. Thanks @​nickgaya, #1300/#1301
  • Reset the watched state of pipelines after calling exec. This saves a roundtrip to the server by not having to call UNWATCH within Pipeline.reset(). Thanks @​nickgaya, #1299/#1302
  • Added the KEEPTTL option for the SET command. Thanks @​laixintao #1304/#1280
  • Added the MEMORY STATS command. #1268
  • Lock.extend() now has a new option, replace_ttl. When False (the default), Lock.extend() adds the additional_time to the lock's existing TTL. When replace_ttl=True, the lock's existing TTL is replaced with the value of additional_time.
  • Add testing and support for PyPy.

Commits

• 2c9f41f 3.5.3
• e06af2a SentinelConnectionPool plays better with threaded applications.
• 7973bd9 changelog
• e78d7a0 [sentinel] update master address if it changes. (#847)
• afb3b81 Restore try/except in del methods
• 7c0a67a 3.5.2
• 32a5840 Tune the locking in ConnectionPool.get_connection
• fa37b8b 3.5.1
• a7559fe Fix for HSET argument validation to allow any non-None key
• 252c840 Python 2 compatibility note
• Additional commits viewable in compare view

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