add testSnapshotFolder to path.repo

[anntians]

Description

The 2.19 release build was failing KNN integ tests https://build.ci.opensearch.org/blue/organizations/jenkins/integ-test/detail/integ-test/9318/pipeline/90. Specifically the RestoreSnapshotIT test. There is a prior PR opensearch-project/k-NN#2461 that added fixes to this test by adding a path to path.repo. The current failure is related to that change. This PR attempts to fix it.

Issues Resolved

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[peterzhuamazon]

Hi @anntians could you add the same to 2.20.0 and 3.0.0-alpha1 related test file with this change as well?

Thanks.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.06%. Comparing base (7c0d46e) to head (d20abbf).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5286   +/-   ##
=======================================
  Coverage   92.06%   92.06%           
=======================================
  Files         202      202           
  Lines        7017     7017           
=======================================
  Hits         6460     6460           
  Misses        557      557           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[gaiksaya]

Isn't this suppose to be for k-NN component?
Should be under that. Also /tmp default exists on most of the platforms. Is testSnapshotFolder being created by some gradle action?
Adding @peterzhuamazon @rishabh6788

[peterzhuamazon]

I didnt realize they add it under index-management.

[gaiksaya]

Please add the config under k-NN component. Thanks!

[peterzhuamazon]

I didnt realize they add it under index-management.

[peterzhuamazon]

Approve under the assumption that this will be ported to 2.20 and 3.0.0-alpha1 later.

Thanks.