fix: Added proper return messages for drop tasks

[nish112022]

issue: #37249

This is for drop collection,drop partition and drop index tasks

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[nish112022]

rerun go-sdk

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.99%. Comparing base (86b9c3e) to head (09495df).
Report is 39 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #37251      +/-   ##
==========================================
- Coverage   83.15%   80.99%   -2.17%     
==========================================
  Files        1029     1305     +276     
  Lines      157251   182871   +25620     
==========================================
+ Hits       130764   148114   +17350     
- Misses      21322    29557    +8235     
- Partials     5165     5200      +35     

Components	Coverage Δ
Client	∅ <ø> (∅)
Core	67.17% <ø> (∅)
Go	83.25% <100.00%> (+0.06%)	⬆️

Files with missing lines	Coverage Δ
internal/datacoord/index_service.go	92.93% <100.00%> (ø)
internal/rootcoord/drop_collection_task.go	100.00% <100.00%> (ø)
internal/rootcoord/drop_partition_task.go	100.00% <100.00%> (ø)

... and 365 files with indirect coverage changes

[nish112022]

/run-cpu-e2e

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[nish112022]

rerun go-sdk

[nish112022]

rerun go-sdk

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[nish112022]

rerun go-sdk

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: nish112022
To complete the pull request process, please assign congqixia after the PR has been reviewed.
You can assign the PR to them by writing /assign @congqixia in a comment when ready.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• internal/datacoord/OWNERS
• internal/rootcoord/OWNERS
• tests/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@nish112022 cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[nish112022]

/run-cpu-e2e
rerun cpp-unit-test

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@nish112022 go-sdk check failed, comment rerun go-sdk can trigger the job again.

[mergify]

@nish112022 cpp-unit-test check failed, comment rerun cpp-unit-test can trigger the job again.

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[nish112022]

rerun go-sdk

[nish112022]

rerun cpp-unit-test

[nish112022]

/run-cpu-e2e

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.

[nish112022]

/run-cpu-e2e

[mergify]

@nish112022 E2e jenkins job failed, comment /run-cpu-e2e can trigger the job again.