[CI] Test builds from zip files

[noCharger]

Description

Although config.ts is added at the top level of the plugin, it is not included in the construction artifact when using the command yarn plugin-helpers build. The current github testing workflows always get the source code through checkout. (see examples https://github.com/opensearch-project/dashboards-search-relevance/blob/main/.github/workflows/remote-integ-tests-workflow.yml#L72-L75 and https://github.com/opensearch-project/dashboards-search-relevance/blob/main/.github/workflows/test-and-build.yml#L22-L25). We should instead utilize build artifacts for integration testing.

[dblock]

Is this a problem for all plugins? Could we please open a meta issue in OpenSearch-Dashboards and do this for all plugins? cc: @kavilla

[kavilla]

Is this a problem for all plugins? Could we please open a meta issue in OpenSearch-Dashboards and do this for all plugins? cc: @kavilla

Opened this:
opensearch-project/OpenSearch-Dashboards#3918

[sejli]

Current progress is being worked on and monitored here.