fix: move GITHUB_STEP_SUMMARY after run

.github/workflows/test_common.yml

@@ -76,8 +76,6 @@ jobs:
 
     - name: Create job summary
       if: always()
-      env:
-        GITHUB_STEP_SUMMARY: ""
       run: |
         echo "## Run Information" >> $GITHUB_STEP_SUMMARY
         echo "- **Node1**: ${{ env.NODE_1 }}" >> $GITHUB_STEP_SUMMARY
@@ -86,4 +84,5 @@ jobs:
         echo "## Test Results" >> $GITHUB_STEP_SUMMARY
         echo "Allure report will be available at: https://waku-org.github.io/waku-interop-tests/${{ github.run_number }}" >> $GITHUB_STEP_SUMMARY
         curl -H "Content-Type: application/json" -X POST -d '{"username": "${{ github.workflow }}", "content": "${{ GITHUB_STEP_SUMMARY }}"}' ${{ secrets.DISCORD_TEST_REPORTS_WH }}
-  
+      env:
+        GITHUB_STEP_SUMMARY: ""