Is your feature request related to a problem? Please describe.
The .opensearch-dashboards-plugin-helpers.json file in workbench should be named .opensearch_dashboards-plugin-helpers.json according to https://github.com/opensearch-project/OpenSearch-Dashboards/tree/9a2d3e6918760c4bba8b44b9e8dfcd14e459a916/packages/osd-plugin-helpers#configuration

Describe the solution you'd like
Changing the name of plugin-helpers file naming to match the config as mentioned here. The previous file name with "-" instead of "_" would result in the artifact built with missing files.

Describe alternatives you've considered

Additional context