fix: has to use yarn to build to support IE11

npm causes dist/reporter.js not fully es6ified with unknown reason.

.github/workflows/ci.yml

@@ -23,8 +23,8 @@ jobs:
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node_version }}
-      - run: npm install
-      - run: xvfb-run -a npm test
+      - run: yarn
+      - run: xvfb-run -a yarn test
         if: runner.os == 'Linux'
-      - run: npm test
+      - run: yarn test
         if: runner.os != 'Linux'

package.json

@@ -47,15 +47,15 @@
     "eslint": "^7.10.0",
     "jasmine-core": "^3.6.0",
     "mocha": "^8.1.3",
-    "socket.io-client": "^2.3.0",
+    "socket.io-client": "^2.3.1",
     "source-map-support": "^0.5.19",
     "standard-changelog": "^2.0.24",
     "tape": "^5.0.1"
   },
   "dependencies": {
     "ansi-colors": "^4.1.1",
     "commander": "^6.1.0",
-    "electron": "^10.1.2",
+    "electron": "^10.1.3",
     "finalhandler": "^1.1.2",
     "lodash.kebabcase": "^4.1.1",
     "serve-static": "^1.14.1",