bump wasm-pack to v0.15

Author: newpavlov

.github/workflows/tests.yml

@@ -318,7 +318,7 @@ jobs:
       - name: Install precompiled wasm-pack
         shell: bash
         run: |
-          VERSION=v0.13.1
+          VERSION=v0.15.0
           URL=https://github.com/rustwasm/wasm-pack/releases/download/${VERSION}/wasm-pack-${VERSION}-x86_64-unknown-linux-musl.tar.gz
           wget -O - $URL | tar -xz --strip-components=1 -C ~/.cargo/bin
           wasm-pack --version