Support "GET" argument for "SET" command

[jiekun]

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Version: Latest

Platform: All

Description: SET command supports GET param since Redis 6.2. Should be supported in redis-py.

Ref:

• https://redis.io/commands/set
• https://redis.io/commands/getset

[github-actions]

This issue is marked stale. It will be closed in 30 days if it is not updated.

[chayim]

Closing as this is in 4.0.0, the future release.