fix: fix can not get drainer status from pd

[srstack]

What problem does this PR solve?

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Code changes

• Has exported function/method change
• Has exported variable/fields change
• Has interface methods change
• Has persistent data change

Side effects

• Possible performance regression
• Increased code complexity
• Breaking backward compatibility

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release notes:

NONE

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• AstroProfundis

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[codecov-commenter]

Codecov Report

Merging #1922 (a9da00e) into master (e52c3bb) will decrease coverage by 0.03%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #1922      +/-   ##
==========================================
- Coverage   52.55%   52.52%   -0.03%     
==========================================
  Files         307      307              
  Lines       35454    35454              
==========================================
- Hits        18631    18622       -9     
- Misses      14630    14637       +7     
- Partials     2193     2195       +2     

Flag	Coverage Δ
cluster	41.11% <0.00%> (-0.01%)	⬇️
dm	24.40% <0.00%> (-0.04%)	⬇️
playground	12.94% <0.00%> (ø)
tiup	14.45% <0.00%> (ø)
unittest	21.04% <0.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/cluster/api/binlog.go	38.74% <0.00%> (ø)
pkg/cluster/api/dmapi.go	59.88% <0.00%> (-1.74%)	⬇️
pkg/localdata/profile.go	45.60% <0.00%> (-1.65%)	⬇️
pkg/cluster/spec/tiflash.go	69.18% <0.00%> (-0.50%)	⬇️

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[AstroProfundis]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: a9da00e