fix .drone.yml

.drone.yml

@@ -28,10 +28,9 @@ steps:
     commands:
       - apt-get update
       - apt-get install -y --no-install-recommends build-essential ca-certificates curl git ssh libssl-dev
-      - pkg-config
-      - npm install
       - curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain stable --no-modify-path
       - rustup default nightly
+      - npm install
       - npm run export
       - cp __sapper__/build/server/assets/*.wasm __sapper__/export/assets/