fix build errors caused by filterIndices method being moved from SnapshotUtils to IndexUtils

[dancristiancecoi]

Description

This PR fixes build errors caused by a recent change in Core where the filderIndices() method got moved from SnapshotUtils to IndexUtils

Issues Resolved

#4312

Check List

• [ ] New functionality includes testing
• [ ] New functionality has been documented
• [x] Commits are signed per the DCO using --signoff

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[dancristiancecoi]

Thanks @dancristiancecoi for raising this fix. Could you point to the change that caused this?

Sure! The PR: https://github.com/opensearch-project/OpenSearch/pull/8922/commits The actual commit: https://github.com/opensearch-project/OpenSearch/pull/8922/commits/1304ef3b26a5e1f60e5d77ea6cef12f0d765c040

[DarshitChanpura]

Thanks @dancristiancecoi. The changes seems in-line with the changes in core. Would you please look at backwards-compatibility failures?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 66.07%. Comparing base (6d35a0a) to head (474e40f). Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4313      +/-   ##
==========================================
- Coverage   66.12%   66.07%   -0.06%     
==========================================
  Files         302      302              
  Lines       21758    21758              
  Branches     3522     3522              
==========================================
- Hits        14387    14376      -11     
- Misses       5609     5614       +5     
- Partials     1762     1768       +6     

Files	Coverage Δ
...earch/security/resolver/IndexResolverReplacer.java	68.01% <100.00%> (ø)
...search/security/support/SnapshotRestoreHelper.java	82.75% <100.00%> (ø)

... and 8 files with indirect coverage changes

[cwperks]

This change needs to go into 2.x first to resolve the bwc test failures. 2.x isn't compiling along with main since this change was recently backported to 2.x in core.

[cwperks]

Thank you for the contribution @dancristiancecoi! The changes look good to me.

[cwperks]

Created a backport for this change to 2.x. Once that's merged the bwc checks can be re-run on this PR: https://github.com/opensearch-project/security/pull/4319

[willyborankin]

Created a backport for this change to 2.x. Once that's merged the bwc checks can be re-run on this PR: #4319

Thank you, @cwperks. I merged it.

[cwperks]

Thank you @willyborankin ! Looks like the bwc checks are green now. Merging this PR.