upgrade to node v14.x

package.json

@@ -40,10 +40,10 @@
     "@types/glob": "^7.1.3",
     "@types/jsdom": "^16.2.10",
     "@types/mocha": "^8.2.2",
-    "@types/node": "^12.12.37",
+    "@types/node": "^14.14.44",
     "@types/utf8": "^2.1.6",
     "@types/webpack": "^5.28.0",
-    "@types/ws": "^7.4.2",
+    "@types/ws": "^7.4.4",
     "@typescript-eslint/eslint-plugin": "^4.23.0",
     "@typescript-eslint/parser": "^4.23.0",
     "chai": "^4.3.4",
@@ -57,9 +57,9 @@
     "mustache": "^4.2.0",
     "node-pty": "^0.10.1",
     "nyc": "^15.1.0",
-    "playwright": "^1.10.0",
+    "playwright": "^1.11.0",
     "source-map-loader": "^2.0.1",
-    "ts-loader": "8.2.0",
+    "ts-loader": "^9.1.2",
     "typescript": "^4.2.4",
     "utf8": "^3.0.0",
     "webpack": "^5.37.0",