Upload Datadog average CPU usage metric in citool

Author: Kobzol

.github/workflows/ci.yml

@@ -176,6 +176,12 @@ jobs:
       - name: ensure the stable version number is correct
         run: src/ci/scripts/verify-stable-version-number.sh
 
+      # Pre-build citool before the following step uninstalls rustup
+      - name: build citool
+        run: |
+          cd src/ci/citool
+          cargo build
+
       - name: run the build
         # Redirect stderr to stdout to avoid reordering the two streams in the GHA logs.
         run: src/ci/scripts/run-build-from-ci.sh 2>&1
@@ -215,13 +221,9 @@ jobs:
       - name: upload job metrics to DataDog
         if: needs.calculate_matrix.outputs.run_type != 'pr'
         env:
-          DATADOG_SITE: datadoghq.com
           DATADOG_API_KEY: ${{ secrets.DATADOG_API_KEY }}
           DD_GITHUB_JOB_NAME: ${{ matrix.full_name }}
-        run: |
-          cd src/ci
-          npm ci
-          python3 scripts/upload-build-metrics.py ../../build/cpu-usage.csv
+        run: ./src/ci/citool/target/debug/citool upload-build-metrics build/cpu-usage.csv
 
   # This job isused to tell bors the final status of the build, as there is no practical way to detect
   # when a workflow is successful listening to webhooks only in our current bors implementation (homu).