chore(internal/tests): pin bun types version

Author: RobertCraigie

ecosystem-tests/bun/package.json

@@ -10,7 +10,7 @@
   },
   "devDependencies": {
     "fastest-levenshtein": "^1.0.16",
-    "bun-types": "^1.2.14",
+    "bun-types": "1.2.17",
     "typescript": "5.8.3"
   }
 }