fix: pin rspack version (#4222)

Author: 9aoy

packages/core/package.json

@@ -51,7 +51,7 @@
     "prebundle": "prebundle"
   },
   "dependencies": {
-    "@rspack/core": "~1.1.6",
+    "@rspack/core": "1.1.8",
     "@rspack/lite-tapable": "~1.0.1",
     "@swc/helpers": "^0.5.15",
     "core-js": "~3.39.0"