Add support for `SSUBSCRIBE`

[atakavci]

implementation for #2758

built on existing routing/command mechanism with adding 2 new interfaces (RedisShardedPubSubListener, RedisClusterShardedPubSubListener) to avoid breaking existing use cases. need to add some more tests, including SPUBLISH command to check listeners are working properly.

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• [X] You have created a feature request first to discuss your contribution intent. Please reference the feature request ticket number in the pull request.
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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 79.31034% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 77.66%. Comparing base (43843bf) to head (5616087). Report is 246 commits behind head on main.

Files	Patch %	Lines
...io/lettuce/core/cluster/PubSubClusterEndpoint.java	60.00%	2 Missing :warning:
...ore/cluster/pubsub/RedisClusterPubSubListener.java	0.00%	2 Missing :warning:
...core/cluster/pubsub/RedisClusterPubSubAdapter.java	0.00%	1 Missing :warning:
...ava/io/lettuce/core/pubsub/RedisPubSubAdapter.java	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2813 +/- ## ============================================ - Coverage 78.71% 77.66% -1.06% - Complexity 6786 7195 +409 ============================================ Files 508 539 +31 Lines 22765 24402 +1637 Branches 2446 2603 +157 ============================================ + Hits 17919 18951 +1032 - Misses 3717 4246 +529 - Partials 1129 1205 +76 ```

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[tishun]

Looks good. For the final merge, we typically squash all commits into one to keep one commit per ticket. That works well with tickets that introduce separate commands. @tishun do you want me to merge this one or do you want to merge it?

Please go ahead and thank you for the review!

[mp911de]

That's squashed, merged, and polished now.