[Remote Store] Add snapshot type information in repository data.

[harishbhakuni]

Description

• While adding Shallow copy snapshots support, we introduced a new method deleteSnapshotsAndReleaseLockFiles (which also takes care of releasing remote store lock for the snapshot) in repository interface. We did not directly used this new method in snapshot service as it would be a breaking change for existing users who have implemented this interface differently or for those who do not have this method implemented in their repository implementation.
• Thus, during snapshot deletion we relied on shallow_copy_snapshot_enabled repository setting flag to decide if we need to use the old method deleteSnapshots or the new method deleteSnapshotsAndReleaseLockFiles.
• Now we will be supporting migration from remote store indices to docrep indices, we cannot rely on this repository setting as it would end up into dangling lock files in remote store.

Related Issues

Resolves #8610

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• API changes companion pull request created.
• Failing checks are inspected and point to the corresponding known issue(s) (See: Troubleshooting Failing Builds)
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

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[github-actions]

❌ Gradle check result for 2ea5d6f: 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?