[Cherry-Pick] Fix QueryNode may panics when stopped (#21406)

[congqixia]

See also #21460

/kind bug

Signed-off-by: Congqi Xia congqi.xia@zilliz.com

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

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[mergify]

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[mergify]

@congqixia ut workflow job failed, comment rerun ut can trigger the job again.

[codecov]

Codecov Report

Merging #21419 (d751044) into 2.2.0 (d751044) will not change coverage.
The diff coverage is n/a.

❗ Current head d751044 differs from pull request most recent head 78e9d9f. Consider uploading reports for the commit 78e9d9f to get more accurate results

@@           Coverage Diff           @@
##            2.2.0   #21419   +/-   ##
=======================================
  Coverage   73.29%   73.29%           
=======================================
  Files         688      688           
  Lines       92992    92992           
=======================================
  Hits        68163    68163           
  Misses      21570    21570           
  Partials     3259     3259           

[weiliu1031]

/lgtm