Fix failing test-c8 target and improve coverage workflow

Signed-off-by: Lalit Narayan Yadav <[email protected]>

Author: LalitNarayanYadav

.github/workflows/run_tests_coverage.yml

@@ -139,6 +139,11 @@ jobs:
           make install-node-modules || make install-node-modules || make install-node-modules
         timeout-minutes: 15
 
+      # Install c8
+      - name: Install c8
+        run: npm install c8
+        timeout-minutes: 5
+
       # Initialize development environment:
       - name: 'Initialize development environment'
         run: |