Add wasm32 target CI build

.github/workflows/ci.yml

@@ -55,6 +55,38 @@ jobs:
         env:
           RUST_BACKTRACE: 1
 
+  wasm_build:
+    name: Build wasm32
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Checkout sources
+        uses: actions/checkout@v3
+        with:
+          persist-credentials: false
+
+      - name: Install stable toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: stable
+
+      - name: Add wasm target
+        run: rustup target add wasm32-unknown-unknown
+
+       - name: wasm32 build (debug; default features)
+        run: cargo build --target wasm32-unknown-unknown --lib
+        env:
+          RUST_BACKTRACE: 1
+
+      - name: wasm32 build (debug; all features)
+        run: cargo build --target wasm32-unknown-unknown --lib --all-features
+        env:
+          RUST_BACKTRACE: 1
+
+      - name: wasm32 build (debug; no default features)
+        run: cargo build --target wasm32-unknown-unknown --lib --no-default-features
+        env:
+          RUST_BACKTRACE: 1
+
   msrv:
     runs-on: ${{ matrix.os }}
     strategy: