[release-3.6] deps: bump google.golang.org/grpc to 1.82.1

[ivanvc]

In preparation for v3.6.14, bump google.golang.org/grpc to 1.82.1 to address GHSA-hrxh-6v49-42gf (ranked high 8.8/10 according to GitHub).

[ivanvc]

/retest

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.99%. Comparing base (5f12ec3) to head (84b0d31).
⚠️ Report is 12 commits behind head on release-3.6.

Additional details and impacted files

see 25 files with indirect coverage changes

@@               Coverage Diff               @@
##           release-3.6   #22155      +/-   ##
===============================================
+ Coverage        68.78%   68.99%   +0.21%     
===============================================
  Files              420      420              
  Lines            35890    35890              
===============================================
+ Hits             24686    24764      +78     
+ Misses            9752     9683      -69     
+ Partials          1452     1443       -9     

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[ahrtr]

/retest

[kubernetes-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahrtr, ivanvc

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[kubernetes-prow]

@ivanvc: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-etcd-coverage-report	84b0d31	link	true	/test pull-etcd-coverage-report

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