ci: parallel test and build

.drone.yml

@@ -10,10 +10,14 @@ when:
 
 steps:
 
-- name: build (rust)
+- name: test
   image: rust:1.81-bookworm
   commands:
   - cargo test --verbose --all
+
+- name: build (wasm_pack)
+  image: rust:1.81-bookworm
+  commands:
   - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
   - (cd um_wasm && wasm-pack build --release --target web --out-dir ../um_wasm_loader/pkg)
 
@@ -22,6 +26,8 @@ steps:
   environment:
     NPM_TOKEN:
       from_secret: NPM_TOKEN
+  depends_on:
+    - "build (wasm_pack)"
   commands:
   - corepack enable
   - cd um_wasm_loader