updated exercise to remove merge coflcit simulation from step1 just in step included open pr as condition

Author: Chukslord1

.github/workflows/0-start-exercise.yml

@@ -58,7 +58,7 @@ jobs:
   post_next_step_content:
     name: Post next step content
     runs-on: ubuntu-latest
-    needs: [start_exercise]
+    needs: [start_exercise, prepare_merge_conflict]
     env:
       ISSUE_URL: ${{ needs.start_exercise.outputs.issue-url }}