ops: install wasm-pack from source

Author: benoitlx

.github/workflows/ci.yml

@@ -79,7 +79,7 @@ jobs:
       - name: Cache Cargo dependencies
         uses: Swatinem/rust-cache@v2
       - name: Install wasm-pack
-        run: curl https://drager.github.io/wasm-pack/installer/init.sh -sSf | sh
+        run: cargo install wasm-pack
       - name: Run browser headless tests
         run: wasm-pack test --firefox --headless