[Backport 2.x] [Remote Store] Get SeqNo from Segment Info and integ tests for restore flow

[opensearch-trigger-bot]

Backport f01d3d2 from #6067.

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: FAILURE ❌
• URL: https://build.ci.opensearch.org/job/gradle-check/10579/
• CommitID: 76ee540
  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?

[codecov-commenter]

Codecov Report

Merging #6171 (31e0d0b) into 2.x (31e0d0b) will not change coverage.
The diff coverage is n/a.

❗ Current head 31e0d0b differs from pull request most recent head 6e3bdb4. Consider uploading reports for the commit 6e3bdb4 to get more accurate results

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@@            Coverage Diff            @@
##                2.x    #6171   +/-   ##
=========================================
  Coverage     70.47%   70.47%           
  Complexity    59033    59033           
=========================================
  Files          4774     4774           
  Lines        282859   282859           
  Branches      41211    41211           
=========================================
  Hits         199346   199346           
  Misses        66883    66883           
  Partials      16630    16630           

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[kotwanikunal]

FAILURE: Build completed with 2 failures.

1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':distribution:bwc:maintenance:buildBwcLinuxTar'.
> Building 1.3.8 didn't generate expected file /var/jenkins/workspace/gradle-check/search/distribution/bwc/maintenance/build/bwc/checkout-1.3/distribution/archives/linux-tar/build/distributions/opensearch-min-1.3.8-SNAPSHOT-linux-x64.tar.gz

[kotwanikunal]

Rebased off 2.x

[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/10607/
• CommitID: 6e3bdb4