[CI] dynamic node version

.github/workflows/ci.yml

@@ -156,13 +156,17 @@ jobs:
     # hence the tests
     name: ${{ matrix.name }} WASM test
     runs-on: ubuntu-latest
+    continue-on-error: ${{ matrix.experimental }}
 
     strategy:
       fail-fast: true
 
       matrix:
+        node: [ "lts/*" ]
+        experimental: [ false ]
         name:
           - matrix-sdk-example-wasm_command_bot
+          - "matrix-sdk-example-wasm_command_bot@latest Node"
           - matrix-sdk-base
           - matrix-sdk-crypto
           - matrix-sdk
@@ -185,6 +189,15 @@ jobs:
               npm test
               wasm-pack test --firefox --headless
 
+          - name: "matrix-sdk-example-wasm_command_bot@latest Node"
+            experimental: true # this might fail
+            node: "node" # building with latest
+            base_dir: matrix-sdk/examples/wasm_command_bot
+            cmd: |
+              npm install
+              npm test
+              wasm-pack test --firefox --headless
+
     steps:
     - name: Checkout the repo
       uses: actions/checkout@v2
@@ -208,6 +221,11 @@ jobs:
         profile: minimal
         override: true
 
+    - name: Setup Node
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node }}
+
     - name: Install emscripten
       uses: mymindstorm/setup-emsdk@v11