Pin typescript/types version

type: task

Because we have a collection of usages of things and conflicts
that break with the new version: https://github.com/vector-im/element-web/issues?q=is%3Aissue+is%3Aopen+preventing+TypeScript+upgrade

package.json

@@ -142,9 +142,9 @@
     "@types/pako": "^1.0.1",
     "@types/parse5": "^6.0.0",
     "@types/qrcode": "^1.3.5",
-    "@types/react": "^17.0.2",
+    "@types/react": "17.0.14",
     "@types/react-beautiful-dnd": "^13.0.0",
-    "@types/react-dom": "^17.0.2",
+    "@types/react-dom": "17.0.9",
     "@types/react-transition-group": "^4.4.0",
     "@types/sanitize-html": "^2.3.1",
     "@types/zxcvbn": "^4.4.0",
@@ -175,7 +175,7 @@
     "stylelint": "^13.9.0",
     "stylelint-config-standard": "^20.0.0",
     "stylelint-scss": "^3.18.0",
-    "typescript": "^4.1.3",
+    "typescript": "4.3.5",
     "walk": "^2.3.14"
   },
   "jest": {