Revert "chore: remove wasm-pack ci workflow"

This reverts commit e5fb1d9.

.github/workflows/wasm.yaml

@@ -0,0 +1,41 @@
+name: WASM Tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install Rust
+      uses: dtolnay/rust-toolchain@stable
+      with:
+        targets: wasm32-unknown-unknown
+
+    - name: Install wasm-pack
+      run: curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
+
+    - name: Build server
+      run: cargo build
+
+    - name: Start server and run tests
+      run: |
+        # Start the server binary in the background
+        ./target/debug/pkarr-relay --testnet &
+        SERVER_PID=$!
+        
+        # Change the working directory to pkarr crate
+        cd ./pkarr
+        
+        # Run wasm-pack tests
+        wasm-pack test --headless --firefox --lib
+        
+        # Kill the server
+        kill $SERVER_PID
+