chore(CI): disable the audit step during memcheck test

.github/workflows/memcheck.yml

@@ -279,14 +279,15 @@ jobs:
           SN_LOG: "all"
         timeout-minutes: 10
 
-      - name: Audit from genesis to collect entire spend DAG and dump to a dot file
-        run: |
-          cargo run --bin safe --release -- --log-output-dest=data-dir wallet audit --dot > spend_dag_and_statistics.txt
-          echo "=============================================================================="
-          cat spend_dag_and_statistics.txt
-        env:
-          SN_LOG: "all"
-        timeout-minutes: 60
+      # Disable this test temporarily as it takes too long time, which blocks the merge queue. 
+      # - name: Audit from genesis to collect entire spend DAG and dump to a dot file
+      #   run: |
+      #     cargo run --bin safe --release -- --log-output-dest=data-dir wallet audit --dot > spend_dag_and_statistics.txt
+      #     echo "=============================================================================="
+      #     cat spend_dag_and_statistics.txt
+      #   env:
+      #     SN_LOG: "all"
+      #   timeout-minutes: 60
 
       - name: Check nodes running
         shell: bash
@@ -446,10 +447,11 @@ jobs:
         continue-on-error: true
         if: always()
 
-      - name: Upload spend DAG and statistics
-        uses: actions/upload-artifact@main
-        with:
-          name: memory_check_spend_dag_and_statistics
-          path: spend_dag_and_statistics.txt
-        continue-on-error: true
-        if: always()
+      # Re-enable this block once the previous step of audit got enabled.
+      # - name: Upload spend DAG and statistics
+      #   uses: actions/upload-artifact@main
+      #   with:
+      #     name: memory_check_spend_dag_and_statistics
+      #     path: spend_dag_and_statistics.txt
+      #   continue-on-error: true
+      #   if: always()