fix: update coverage workflow to use npm install and custom coverage path

Author: sunil-lakshman

.github/workflows/coverage-check.yml

@@ -25,11 +25,14 @@ jobs:
           cache: 'npm'
 
       - name: Install dependencies
-        run: npm ci
+        run: npm install
 
       - name: Run unit tests with coverage
         uses: ArtiomTr/jest-coverage-report-action@v2
         id: coverage
         with:
           test-script: npm run test:unit
-          threshold: 95
+          threshold: 95
+          coverage-file: ./reports/contentstack-delivery/coverage/coverage-final.json
+          base-coverage-file: ./reports/contentstack-delivery/coverage/coverage-final.json
+          skip-step: install