ci(*): add build step before publishing package (#486)

This pull request adds a build step to the publish workflow in
`.github/workflows/publish.yml` to ensure the project is built before
publishing.

Workflow improvements:

* Added a `Build` step that runs `npm run build --if-present` prior to
publishing the package, ensuring any necessary build artifacts are
generated before the publish step.

Author: lumirlumir

.github/workflows/publish.yml

@@ -34,5 +34,8 @@ jobs:
       - name: Set up node_modules
         run: npm ci
 
+      - name: Build
+        run: npm run build --if-present
+
       - name: Publish
         run: npm run publish-package