Update version check for fix the bug of missing validation for the search_backpressure.mode setting

[gaobinlong]

Description

This PR fixed the bug of the validation for the cluster level search_backpressure.mode setting is missing, we need to update the version check in the yaml test file.

Changelog is not needed, backport 2.x is needed.

Related Issues

No issue.

Check List

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

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[reta]

Thanks a lot @gaobinlong !

[github-actions]

❌ Gradle check result for eb4ba1e: 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 eb4ba1e: SUCCESS

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.83%. Comparing base (2b84305) to head (eb4ba1e).
Report is 4 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main   #15500      +/-   ##
============================================
- Coverage     71.90%   71.83%   -0.08%     
+ Complexity    63481    63399      -82     
============================================
  Files          5244     5244              
  Lines        296798   296798              
  Branches      42852    42852              
============================================
- Hits         213414   213202     -212     
- Misses        65917    66092     +175     
- Partials      17467    17504      +37     

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[opensearch-trigger-bot]

The backport to 2.x failed:

The process '/usr/bin/git' failed with exit code 128

To backport manually, run these commands in your terminal:

# Navigate to the root of your repository
cd $(git rev-parse --show-toplevel)
# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add ../.worktrees/OpenSearch/backport-2.x 2.x
# Navigate to the new working tree
pushd ../.worktrees/OpenSearch/backport-2.x
# Create a new branch
git switch --create backport/backport-15500-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 e5fadba7b82da4da714cac37aa335a3be230eace
# Push it to GitHub
git push --set-upstream origin backport/backport-15500-to-2.x
# Go back to the original working tree
popd
# Delete the working tree
git worktree remove ../.worktrees/OpenSearch/backport-2.x

Then, create a pull request where the base branch is 2.x and the compare/head branch is backport/backport-15500-to-2.x.

[reta]

@gaobinlong mind please backport manually (if needed), thank you

[gaobinlong]

@gaobinlong mind please backport manually (if needed), thank you

Actually it's not needed because the version check has been changed in 2.x branch, but doesn't match the version in this PR, I'll make them consistent in another PR.