Github Actions: another fix for the levitate workflow (#43742)

* fix: add col number to the link to work correctly

If we don't provide the position in a #step:{line}:{column} format
then the Github UI won't take us to the correct step.

* fix: escape the backtick ("`") characters properly

.github/workflows/detect-breaking-changes-build.yml

@@ -41,7 +41,7 @@ jobs:
     - name: Persisting the check output
       run: |
           mkdir -p ./levitate
-          echo "{ \"exit_code\": ${{ steps.breaking-changes.outputs.is_breaking }}, \"message\": \"${{ steps.breaking-changes.outputs.message }}\", \"job_link\": \"${{ steps.job.outputs.link }}#step:${GITHUB_STEP_NUMBER}\" }" > ./levitate/result.json
+          echo "{ \"exit_code\": ${{ steps.breaking-changes.outputs.is_breaking }}, \"message\": \"${{ steps.breaking-changes.outputs.message }}\", \"job_link\": \"${{ steps.job.outputs.link }}#step:${GITHUB_STEP_NUMBER}:1\" }" > ./levitate/result.json
 
     - name: Upload check output as artifact
       uses: actions/upload-artifact@v2