Add a new configuration setting synonym_analyzer for synonym_graph and synonym.

[prudhvigodithi]

Description

Coming from #16263 (comment) this PR is not final and still need some discussion.

Related Issues

Part of #16263 and #16530.

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 fb66d0f: FAILURE

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[github-actions]

❌ Gradle check result for 550756f: FAILURE

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[github-actions]

❌ Gradle check result for 7a5c00e: FAILURE

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[github-actions]

❌ Gradle check result for 17737cf: FAILURE

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[github-actions]

❌ Gradle check result for 0332408: FAILURE

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[github-actions]

✅ Gradle check result for db57995: SUCCESS

[github-actions]

✅ Gradle check result for 84de9dc: SUCCESS

[github-actions]

✅ Gradle check result for 7d6fc43: SUCCESS

[prudhvigodithi]

Hey @msfroh I just pushed a commit to fix the CHANGELOG.md conflict, can you please take a look if we are good we can merge this PR.
Thanks

[github-actions]

❌ Gradle check result for 0c33516: FAILURE

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[prudhvigodithi]

I have re-triggered the Gradle check, the failure is due to the flaky tests coming from MinimumClusterManagerNodesIT. The existing automation should link this PR to the existing Flaky Test Report for MinimumClusterManagerNodesIT.

[github-actions]

❌ Gradle check result for 0c33516:

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 0c33516: SUCCESS

[github-actions]

❌ Gradle check result for 5411897: FAILURE

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[github-actions]

✅ Gradle check result for 5411897: SUCCESS

[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-16488-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 5068fad53922f992ef651f78c148df6d9170c361
# Push it to GitHub
git push --set-upstream origin backport/backport-16488-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-16488-to-2.x.

[prudhvigodithi]

Created a backport 2.x PR #16625. I assume the backport failed because of the CommonAnalysisPlugin.java on 2.x and CommonAnalysisModulePlugin.java on main branch.
Thank you
@msfroh