Change workflow step name

Author: tamasvajk

.github/workflows/csv-coverage-pr-comment.yml

@@ -26,7 +26,7 @@ jobs:
       with:
         python-version: 3.8
 
-    - name: Check coverage files
+    - name: Check coverage difference file and comment
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         RUN_ID: ${{ github.event.workflow_run.id }}