message: Use node-v8 lkgr for testing Wasm SIMD code
  This is necessary because node-v8 uses a new SIMD encoding; once we
  update the decoder to use it, we will need this for testing.
diff: @@ -63,7 +63,10 @@ jobs:
  - name: test
  run: node js/meshopt_decoder.test.js
  - name: test simd
  - run: node --experimental-wasm-simd js/meshopt_decoder.test.js
  + run: |
  + export CANARY=canary20200504008edc4c19
  + curl https://nodejs.org/download/v8-canary/v15.0.0-v8-$CANARY/node-v15.0.0-v8-$CANARY-linux-x64.tar.gz | tar -xz
  + node-v15.0.0-v8-$CANARY-linux-x64/bin/node --experimental-wasm-simd js/meshopt_decoder.test.js
  gltfpack:
  runs-on: ubuntu-latest
  