CI: Build and publish (#7)

Reviewed-on: https://git.unlock-music.dev/um/lib_um_crypto_rust/pulls/7
Co-authored-by: 鲁树人 <lu.shuren@um-react.app>
Co-committed-by: 鲁树人 <lu.shuren@um-react.app>

.drone.yml

@@ -0,0 +1,38 @@
+kind: pipeline
+type: docker
+name: default
+
+when:
+  event:
+  - push
+  - pull_request
+  - tag
+
+steps:
+
+- 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)
+
+- name: build (node)
+  image: node:22.9-bookworm
+  environment:
+    NPM_TOKEN:
+      from_secret: NPM_TOKEN
+    COREPACK_ENABLE_AUTO_PIN: 0
+    BUILD_SKIP_WASM_PACK: 1
+  depends_on:
+    - "build (wasm_pack)"
+  commands:
+  - corepack enable
+  - cd um_wasm_loader
+  - pnpm i
+  - pnpm build
+  - ./ci_publish.sh