chore(ci): remove deprecated output

The test workflow will not fully run right now because it runs on
`pull_request_target` which must be merged into the base branch first.

.github/workflows/test.yml

@@ -60,6 +60,6 @@ jobs:
           issue-number: ${{ github.event.pull_request.number }}
           comment-id: ${{ steps.find-comment.outputs.comment-id }}
           body: |
-            Coverage as of ${{ github.sha }}: ${{ steps.output-coverage.outputs.badge-text }}
+            Coverage as of ${{ github.sha }}: ${{ steps.output-coverage.outputs.total-coverage }}%
           edit-mode: append
         if: env.GIT_DIFF && github.event_name == 'pull_request'