system-tests : Use reusable workflow to get scenario/weblog list

.github/workflows/system-tests.yml

@@ -27,30 +27,21 @@ jobs:
           path: ./binaries/**/*
 
   get-essential-scenarios:
-    runs-on: ubuntu-latest
-    outputs:
-      scenario: ${{ steps.parse-yml.outputs.scenario }}
-    steps:
-      - name: Checkout system tests
-        uses: actions/checkout@v4
-        with:
-          repository: 'DataDog/system-tests'
-      - name: Get Essential Scenarios
-        id: parse-yml
-        run: yq -o tsv .TRACER_ESSENTIAL_SCENARIOS ./scenario_groups.yml | xargs node -p "x=process.argv;x.shift();x.push('CROSSED_TRACING_LIBRARIES');'scenario='+JSON.stringify(x)" >> $GITHUB_OUTPUT
-
+    name: Get parameters
+    uses: DataDog/system-tests/.github/workflows/compute-workflow-parameters.yml@main
+    with:
+      library: nodejs
+      scenarios: CROSSED_TRACING_LIBRARIES
+      scenarios_groups: essentials
 
   system-tests:
     runs-on: ${{ contains(fromJSON('["CROSSED_TRACING_LIBRARIES", "INTEGRATIONS"]'), matrix.scenario) && 'ubuntu-latest-16-cores' || 'ubuntu-latest' }}
     needs:
       - get-essential-scenarios
     strategy:
       matrix:
-        weblog-variant:
-          - express4
-          - express4-typescript
-          - nextjs
-        scenario: ${{fromJson(needs.get-essential-scenarios.outputs.scenario)}}
+        weblog-variant: ${{fromJson(needs.get-essential-scenarios.outputs.endtoend_weblogs)}}
+        scenario: ${{fromJson(needs.get-essential-scenarios.outputs.endtoend_scenarios)}}
 
     env:
       TEST_LIBRARY: nodejs