Add artifactshub metadata to get verified badge

[viceice]

Description

@prudhvigodithi this gives the official badge on opensearch charts

Issues Resolved

• https://github.com/artifacthub/hub/issues/3533
• https://github.com/opensearch-project/helm-charts/issues/269

Check List

• [x] Commits are signed per the DCO using --signoff

For any changes to files within Helm chart directories:

• [ ] Helm chart version bumped
• [ ] Helm chart CHANGELOG.md updated to reflect change

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[prudhvigodithi]

Thanks a lot @viceice, please remove the following user entry. As Idan is maintainer for the OpenSearch Operator repo.

  - name: Idan Levi
    email: idan@opster.com

Thank you