feat(s3stream): add more metrics

[SCNieh]

1. add metrics for usage of deltaWAL, deltaWAL cache, blockCache
2. add metrics for inflight r/w quota for S3Operator
3. add size bucket for r/w object operation
4. explicitly set bucket boundaries for histogram of latency

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (0cb47d3) 55.33% compared to head (68f8e0d) 55.35%.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #845      +/-   ##
============================================
+ Coverage     55.33%   55.35%   +0.02%     
- Complexity     1247     1249       +2     
============================================
  Files           132      132              
  Lines          8574     8574              
  Branches        788      788              
============================================
+ Hits           4744     4746       +2     
  Misses         3414     3414              
+ Partials        416      414       -2     

Components	Coverage Δ
RocketMQ Broker	∅ <ø> (∅)
RocketMQ Common	5.80% <ø> (ø)
RocketMQ Controller	54.58% <ø> (ø)
RocketMQ Proxy	37.28% <ø> (+0.10%)	⬆️
RocketMQ Store	74.62% <ø> (ø)
RocketMQ Stream	∅ <ø> (∅)
RocketMQ Metadata	35.44% <ø> (ø)

see 1 file with indirect coverage changes