[BUG] OpenSearch-Dashboard workflow can only succeed in project repo

[MaxKsyunz]

What is the bug?
When sql-workbench-test-and-build-workflow.yml runs, it checks out opensearch-project/opensearch-dashboards repository.
However, it does so into a folder that is specific to this repo.

How can one reproduce the bug?

1. Fork opensearch-project/sql
2. Run sql-workbench-test-and-build-workflow.yml workflow
   -> The workflow will fail.

See here for a complete example.

What is the expected behavior?
The workflow passes.

Do you have any additional context?
When GitHub Action runs, it creates a pipeline directory and a workspace directory.

Pipeline directory is /home/runner/work/$REPO_NAME and workspace directory is /home/runner/work/$REPO_NAME/$REPO_NAME.

actions/checkout runs out of the pipeline directory, but action/setup-node runs out of the workspace directory.

OpenSearch-Dashboards is checked out into /home/runner/work/$REPO_NAME/sql/OpenSearch-Dashboards and

setup-node action attempts to read a file in /home/runner/work/$REPO_NAME/$REPO_NAME/OpenSearch-Dashboards directory.

=> it will only succeed when $REPO_NAME is sql.

[MaxKsyunz]

Fixed by #704