feat: bump workerpool from ^6.5.1 to ^9.2.0 (#5350)

Author: JoshuaKGoldberg

package-lock.json

@@ -112,7 +112,7 @@
     "serialize-javascript": "^6.0.2",
     "strip-json-comments": "^3.1.1",
     "supports-color": "^8.1.1",
-    "workerpool": "^6.5.1",
+    "workerpool": "^9.2.0",
     "yargs": "^17.7.2",
     "yargs-parser": "^21.1.1",
     "yargs-unparser": "^2.0.0"