Upgrade urgency LOW: This is the second Release Candidate for Redis 7.4.

Performance and resource utilization improvements
=================================================
* #13296 Optimize CPU cache efficiency

Changes to new 7.4 new features (compared to 7.4 RC1)
=====================================================
* #13343 Hash - expiration of individual fields: when key does not exist
- reply with an array (nonexisting code for each field)
* #13329 Hash - expiration of individual fields: new keyspace event:
`hexpired`

Modules API - Potentially breaking changes to new 7.4 features (compared
to 7.4 RC1)

====================================================================================
* #13326 Hash - expiration of individual fields: avoid lazy expire when
called from a Modules API function

…mmands (redis#13343)

Currently, HFE commands reply with empty array if the key does not
exist. Though, non-existing key and empty key is the same thing. 
It means fields given in the command do not exist in the empty key. 
So, replying with an array of 'no field' error codes (-2) suits better 
to Redis logic. e.g. Similarly, `hmget` returns array of nulls if the 
key does not exist.

After this PR:
```
127.0.0.1:6379> hpersist missingkey fields 2 a b
1) (integer) -2
2) (integer) -2
```