[Snapshot V2] Use metadata from source snapshot while cloning snapshot V2

[gbbafna]

Description

While cloning v2 snapshot, we need to use metadata from source snapshot. Earlier we were using cluster state metadata which would not have metadata for deleted indices.

Check List

• Functionality includes testing.
• API changes companion pull request created, if applicable.
• Public documentation issue/PR created, if applicable.

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[github-actions]

❌ Gradle check result for e77aefe: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for e77aefe: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?

[github-actions]

❌ Gradle check result for f36691d: FAILURE

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[github-actions]

✅ Gradle check result for 833f327: SUCCESS

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 24 lines in your changes missing coverage. Please review.

Project coverage is 72.09%. Comparing base (35c366d) to head (833f327).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
...ava/org/opensearch/snapshots/SnapshotsService.java	0.00%	24 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #16344      +/-   ##
============================================
- Coverage     72.10%   72.09%   -0.02%     
+ Complexity    64862    64857       -5     
============================================
  Files          5307     5307              
  Lines        302606   302621      +15     
  Branches      43717    43719       +2     
============================================
- Hits         218208   218188      -20     
- Misses        66541    66546       +5     
- Partials      17857    17887      +30     

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[github-actions]

❌ Gradle check result for e77aefe: FAILURE

Please examine the workflow log, locate, and copy-paste the failure(s) below, then iterate to green. Is the failure a flaky test unrelated to your change?