update deps

package.json

@@ -22,27 +22,27 @@
     "url": "https://github.com/Microsoft/monaco-editor"
   },
   "devDependencies": {
-    "@types/chai": "^3.4.34",
-    "@types/mocha": "^2.2.33",
+    "@types/chai": "^4.2.12",
+    "@types/mocha": "^8.0.3",
     "chai": "^4.2.0",
     "clean-css": "^4.2.3",
-    "css-loader": "^4.2.0",
+    "css-loader": "^4.2.2",
     "event-stream": "4.0.1",
-    "file-loader": "^6.0.0",
-    "gulp": "^4.0.0",
-    "gulp-typedoc": "^2.2.2",
-    "mocha": "^6.2.2",
+    "file-loader": "^6.1.0",
+    "gulp": "^4.0.2",
+    "gulp-typedoc": "^2.2.5",
+    "mocha": "^8.1.3",
     "monaco-css": "2.7.0",
     "monaco-editor-core": "0.20.0",
     "monaco-html": "2.7.0",
     "monaco-json": "3.0.1",
     "monaco-languages": "1.10.0",
     "monaco-typescript": "3.7.0",
-    "playwright": "1.2.0-next.1596653191842",
+    "playwright": "1.3.0",
     "rimraf": "^3.0.2",
     "style-loader": "^1.2.1",
-    "typedoc": "^0.15.8",
-    "typescript": "^3.7.5",
+    "typedoc": "^0.19.1",
+    "typescript": "^4.0.2",
     "uncss": "^0.17.3",
     "vinyl": "^2.2.0",
     "webpack": "^4.44.1",