chore: Install mocks-server before running tests

Author: javierbrea

package.json

@@ -29,7 +29,7 @@
     "mocks:install": "cd mocks && npm i",
     "mocks:ci": "cd mocks && npm run mocks:ci",
     "test": "jest",
-    "test:coverage": "start-server-and-test mocks:ci tcp:3200 test",
+    "test:coverage": "npm run mocks:install && start-server-and-test mocks:ci tcp:3200 test",
     "coveralls": "cat ./coverage/lcov.info | coveralls",
     "test:ci": "npm run test:coverage"
   },