update min number of replicas to 0

[sbcd90]

Description

update min number of replicas to 0 manual backport of #1364

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• [X] New functionality includes testing.
• [X] New functionality has been documented.
• [ ] API changes companion pull request created.
• [X] Commits are signed per the DCO using --signoff.
• [ ] Public documentation issue/PR created.

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[opensearch-trigger-bot[bot]]

The backport to 2.15 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new working tree
git worktree add .worktrees/backport-2.15 2.15
# Navigate to the new working tree
cd .worktrees/backport-2.15
# Create a new branch
git switch --create backport/backport-1371-to-2.15
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 83e60ae7cf6c99651b43f1b3c9515402414b1e53
# Push it to GitHub
git push --set-upstream origin backport/backport-1371-to-2.15
# Go back to the original working tree
cd ../..
# Delete the working tree
git worktree remove .worktrees/backport-2.15

Then, create a pull request where the base branch is 2.15 and the compare/head branch is backport/backport-1371-to-2.15.