Update stale reference in README from 2.14.1 to 2.17.0

[cwperks]

Description

Small PR to update an old reference in the README to point to the latest unreleased minor version 2.17.0.

Check List

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

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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-15099-to-2.x
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x --mainline 1 e8c6f0f1b15acdfbeeba84a551a2b42024f8502b
# Push it to GitHub
git push --set-upstream origin backport/backport-15099-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-15099-to-2.x.

[reta]

@cwperks mind please backport manually to 2.x? thank you

[cwperks]

@reta This PR does not need to be backported. These tags aren't present in the README on the 2.x branch.