Add reply schema for LATENCY-LATESTS new fields

[enjoy-binbin]

These fields was added in #224.

[enjoy-binbin]

This also fix the reply daily:

JSON schema validation error on /home/runner/work/valkey/valkey/tests/tmp/server.7213.155/stdout.reqres: ['command', 1738801393, 716, 716, 716, 1] is too long

Failed validating 'maxItems' in schema['items']:
    {'items': [{'description': 'Event name.', 'type': 'string'},
               {'description': 'Timestamp.', 'type': 'integer'},
               {'description': 'Latest latency in milliseconds.',
                'type': 'integer'},
               {'description': 'Max latency in milliseconds.',
                'type': 'integer'}],
     'maxItems': 4,
     'minItems': 4,
     'type': 'array'}

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.05%. Comparing base (110dd55) to head (7bda2f4).
Report is 2 commits behind head on unstable.

Additional details and impacted files

@@            Coverage Diff            @@
##           unstable    #1678   +/-   ##
=========================================
  Coverage     71.05%   71.05%           
=========================================
  Files           121      121           
  Lines         65243    65243           
=========================================
+ Hits          46358    46359    +1     
+ Misses        18885    18884    -1     

see 13 files with indirect coverage changes