Fix flaky query profile phase tests with concurrent search enabled

[ticheng-aws]

Description

These flaky tests use RandomIndexWriter to add random number of documents to the search index. As long as the score_count in the concurrent search case matches the non-concurrent search case, we can tune the expected value for min_score/min_score_count to make it less sensitive. I ran the new changes 100+ times to make sure that they all passed.

https://github.com/opensearch-project/OpenSearch/pull/10437/files#diff-76990998add8052236baed94bbd99228acb695e70fd797ec2679130de6f45c55

Related Issues

Resolves #10469, resolves #9932, resolves #10139

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff
• Commit changes are listed out in CHANGELOG.md file (See: Changelog)
• Public documentation issue/PR created

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[github-actions]

Gradle Check (Jenkins) Run Completed with:

• RESULT: SUCCESS ✅
• URL: https://build.ci.opensearch.org/job/gradle-check/27574/
• CommitID: 907aad6

[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-10547-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 c4f5dd9f4d45530ad22f165f5ec88736534e5827
# Push it to GitHub
git push --set-upstream origin backport/backport-10547-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-10547-to-2.x.