Revert "chore(deps-dev): bump @types/chai from 4.3.20 to 5.0.0 in /packages/oauth in the dev-chai group" (#2052)

Author: hello-ashleyintech

packages/oauth/package.json

@@ -39,7 +39,7 @@
   },
   "devDependencies": {
     "@biomejs/biome": "^1.8.3",
-    "@types/chai": "^5",
+    "@types/chai": "^4",
     "@types/mocha": "^10",
     "@types/sinon": "^17",
     "c8": "^10.1.2",