enhance: add more metrics for DDL framework

[chyezh]

issue: #43897

[sre-ci-robot]

[ci-v2-notice] Notice: We are gradually rolling out the new ci-v2 system.

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• /ci-rerun-build // for ci-v2/build
• /ci-rerun-ut-integration // for ci-v2/ut-integration
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• /ci-rerun-ut // for all ci-v2/ut-integration, ci-v2/ut-go, ci-v2/ut-cpp
• /ci-rerun-e2e-arm // for ci-v2/e2e-arm

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[codecov[bot]]

Codecov Report

:x: Patch coverage is 93.44262% with 4 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 76.55%. Comparing base (a9895bb) to head (8a01f83). :warning: Report is 13 commits behind head on master.

Files with missing lines	Patch %	Lines
...amingcoord/server/broadcaster/broadcast_manager.go	50.00%	2 Missing and 1 partial :warning:
...treamingcoord/server/broadcaster/broadcast_task.go	90.00%	1 Missing :warning:

Additional details and impacted files

@@             Coverage Diff             @@
##           master   #45558       +/-   ##
===========================================
- Coverage   83.37%   76.55%    -6.82%     
===========================================
  Files         521     1875     +1354     
  Lines       81105   291806   +210701     
===========================================
+ Hits        67619   223397   +155778     
- Misses      13486    60993    +47507     
- Partials        0     7416     +7416     

Components	Coverage Δ
Client	78.17% <ø> (∅)
Core	83.35% <60.97%> (-0.02%)	:arrow_down:
Go	74.63% <73.31%> (∅)

Files with missing lines	Coverage Δ
...coord/server/broadcaster/ack_callback_scheduler.go	72.51% <100.00%> (ø)
...ernal/streamingcoord/server/broadcaster/metrics.go	100.00% <100.00%> (ø)
pkg/metrics/streaming_service_metrics.go	100.00% <100.00%> (ø)
pkg/streaming/util/message/resource_key.go	90.32% <100.00%> (ø)
...treamingcoord/server/broadcaster/broadcast_task.go	78.52% <90.00%> (ø)
...amingcoord/server/broadcaster/broadcast_manager.go	71.98% <50.00%> (ø)

... and 1343 files with indirect coverage changes

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[chyezh]

/ci-rerun-code-check

[chyezh]

/ci-rerun-ut-integration

[chyezh]

/ci-rerun-ut-go

[chyezh]

/ci-rerun-ut-integration

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chyezh, czs007

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