ci(coverage): change coverage_ts.yaml condition to use success only

[aldousalvarez]

Description

On PR #3285, there is a file that has a TypeScript code coverage statistics workflow coverage_ts.yaml. This workflow will only run after CI.yaml has finished all its jobs and if it is on the default branch, which is the main branch. But some of the jobs in CI.yaml are currently failing, so to be able to test it after the merge to see if it is working, the condition used in coverage_ts.yaml is:

if: ${{ github.event.workflow_run.conclusion == 'failure' || github.event.workflow_run.conclusion == 'success' }}

and then once it is confirmed that it is working fine. We should just use success as the condition for coverage_ts.yaml

github.event.workflow_run.conclusion == 'success' }}

Acceptance Criteria

1. The changes on PR ci(coverage): add total typescript code coverage statistics #3285 has been merged.
2. Verify if coverage_ts.yaml runs on the main branch.

cc: @petermetz