Update dependency django-redis to v5

This MR contains the following updates:

Package	Type	Update	Change
django-redis	dependencies	major	^4.12.1 -> ^5.0.0

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Release Notes

jazzband/django-redis

v5.0.0

Compare Source

Date: 2021-05-30

• supporting django 3.1 and django 3.2
• dropped support for python 3.5
• added support for python 3.9
• started type hinting the codebase
• ensure connections are closed
• fixed ShardClient .clear() method
• .delete() now returns boolean from django 3.1 onwards
• disconnect connection pools on .close()
• added support for redis sentinel
• added .expire_at() method
• fixed .incr() when ttl is None or when the number is larger than 64 bit
• fixed .incr_version() when ttl is None
• added .pttl() method to the clients to support milli-second precision for ttl of a key
• added .pexpire() method to the clients to support milli-second precision for setting expiry of a key

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