fix: add timeout for TestArrayStructDataNodeUtil to avoid blocking

[SpadeA-Tang]

issue: https://github.com/milvus-io/milvus/issues/45866

[sre-ci-robot]

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[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: SpadeA-Tang, zhengbuqian

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[codecov[bot]]

Codecov Report

:white_check_mark: All modified and coverable lines are covered by tests. :white_check_mark: Project coverage is 73.61%. Comparing base (e8419a8) to head (69799b1). :warning: Report is 71 commits behind head on master.

:x: Your project check has failed because the head coverage (73.61%) is below the target coverage (77.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #45867      +/-   ##
==========================================
- Coverage   73.63%   73.61%   -0.03%     
==========================================
  Files        1357     1357              
  Lines      211928   211928              
==========================================
- Hits       156059   156014      -45     
- Misses      48449    48469      +20     
- Partials     7420     7445      +25     

Components	Coverage Δ
Client	78.17% <ø> (ø)
Core	∅ <ø> (∅)
Go	74.29% <ø> (-0.03%)	:arrow_down:
see 29 files with indirect coverage changes

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