fix(ci): wrong use of nx

Author: eliandoran

.github/workflows/main-docker.yml

@@ -56,7 +56,7 @@ jobs:
         run: npx playwright install --with-deps
 
       - name: Run the TypeScript build
-        run: npm nx run server:build
+        run: pnpm run server:build
 
       - name: Build and export to Docker
         uses: docker/build-push-action@v6