Fix WASM output path for GitHub Pages deployment

wasm-bindgen now outputs to web/pkg/ to match the import path
in index.html (./pkg/dendrite_web.js)

Signed-off-by: Benjamin Perseghetti <bperseghetti@rudislabs.com>

Author: bperseghetti

.github/workflows/deploy-pages.yml

@@ -54,7 +54,8 @@ jobs:
       - name: Build WASM
         run: |
           cargo build --target wasm32-unknown-unknown -p dendrite-web --release
-          wasm-bindgen --out-dir web --target web --no-typescript target/wasm32-unknown-unknown/release/dendrite_web.wasm
+          mkdir -p web/pkg
+          wasm-bindgen --out-dir web/pkg --target web --no-typescript target/wasm32-unknown-unknown/release/dendrite_web.wasm
 
       - name: Setup Pages
         uses: actions/configure-pages@v4