fix deprecated warning on Mac OS

[jiaoew1991]

Signed-off-by: Enwei Jiao enwei.jiao@zilliz.com
/kind improvement

[jiaoew1991]

they fixed the compile warning in v1.2.1 99designs/keyring#107

[mergify]

@jiaoew1991 ut workflow job failed, comment rerun ut can trigger the job again.

[jiaoew1991]

rerun ut

[codecov]

Codecov Report

Merging #18151 (31bd7f6) into master (6df47c7) will increase coverage by 0.09%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #18151      +/-   ##
==========================================
+ Coverage   81.72%   81.81%   +0.09%     
==========================================
  Files         472      475       +3     
  Lines       75261    75574     +313     
==========================================
+ Hits        61507    61832     +325     
- Misses      11014    11021       +7     
+ Partials     2740     2721      -19     

Impacted Files	Coverage Δ
internal/indexnode/task_state.go	50.00% <0.00%> (-50.00%)	⬇️
internal/util/mock/grpc_indexnode_client.go	83.33% <0.00%> (-16.67%)	⬇️
internal/indexcoord/priority_queue.go	75.24% <0.00%> (-10.90%)	⬇️
internal/datanode/data_sync_service.go	70.73% <0.00%> (-4.27%)	⬇️
internal/mq/mqimpl/rocksmq/client/client_impl.go	77.96% <0.00%> (-4.24%)	⬇️
internal/indexnode/indexnode_mock.go	80.43% <0.00%> (-2.48%)	⬇️
internal/indexcoord/util.go	97.67% <0.00%> (-2.33%)	⬇️
internal/indexnode/indexnode.go	86.59% <0.00%> (-2.01%)	⬇️
internal/datanode/flow_graph_dd_node.go	89.86% <0.00%> (-1.80%)	⬇️
internal/distributed/indexnode/client/client.go	81.25% <0.00%> (-1.31%)	⬇️
... and 29 more

[congqixia]

/lgtm

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: congqixia, jiaoew1991

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