ci: fixing Gitlab build for Yarn

.gitlab-ci.yml

@@ -12,11 +12,11 @@ publish:
         - "cat tsconfig.json | jq 'del(.references)' > a && mv a tsconfig.json"
 
         # Make sure the commits are clean
-        - npm ci
+        - yarn install --frozen-lockfile
         - npx commitlint --from=master to=CI_BUILD_REF_NAME
 
         # Build the project
-        - npm run build
+        - yarn run build
 
         # Perform the automatic release process
         - npx semantic-release