chore: Pin browserslist

Ports testing-library/dom-testing-library#1243

Author: Sebastian Silbermann

package.json

@@ -71,6 +71,10 @@
     "pretty-format": "^29.3.1",
     "typescript": "^4.1.2"
   },
+  "overrides": {
+    "browserslist": "4.21.8",
+    "caniuse-lite": "1.0.30001502"
+  },
   "eslintConfig": {
     "extends": [
       "./node_modules/kcd-scripts/eslint.js",