fix: fix collectionInfo leak in datacoord

[weiliu1031]

issue: #32029
pr: #32175

lack of logic to clean collection info in datacoord's meta, This PR clean collection info after drop channel, to avoid collection info leak in datacoord

[mergify]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[weiliu1031]

/run-cpu-e2e

[mergify]

@weiliu1031 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[codecov]

Codecov Report

Attention: Patch coverage is 78.57143% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 81.56%. Comparing base (5f7edc7) to head (794185c).
Report is 9 commits behind head on 2.4.

Additional details and impacted files

@@            Coverage Diff             @@
##              2.4   #32243      +/-   ##
==========================================
- Coverage   81.65%   81.56%   -0.09%     
==========================================
  Files         966      976      +10     
  Lines      120188   119977     -211     
==========================================
- Hits        98135    97858     -277     
- Misses      18325    18372      +47     
- Partials     3728     3747      +19     

Files	Coverage Δ
internal/datacoord/handler.go	83.19% <100.00%> (ø)
internal/datacoord/meta.go	94.15% <100.00%> (ø)
internal/rootcoord/quota_center.go	90.49% <100.00%> (ø)
internal/datacoord/channel_manager.go	79.34% <0.00%> (ø)

... and 208 files with indirect coverage changes

[tedxu]

/lgtm

[tedxu]

/approve

[czs007]

/approve

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: czs007, tedxu, weiliu1031

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• internal/datacoord/OWNERS [czs007]
• internal/rootcoord/OWNERS [czs007]

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