[Fix] Missing TCP Protocol For Metrics in OpenSearch and OpenSearch Dashboards

[VILJkid]

Description

This pull request addresses a bug related to the Prometheus monitoring configuration in both the OpenSearch and OpenSearch Dashboards Helm charts. The issue was identified where the Service definitions for Prometheus were missing the protocol: TCP setting. This fix adds that setting to both the charts.

Issues Resolved

https://github.com/opensearch-project/helm-charts/issues/588

Check List

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

For any changes to files within Helm chart directories:

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

PR sponsored by Obmondo

[peterzhuamazon]

Thanks @VILJkid for the fix here. Please go ahead and also backport the changes to #578.

Thanks.