chore: bump Rspack 1.2.0 beta

Author: chenjiahan

package.json

@@ -16,10 +16,10 @@
     "@farmfe/core": "1.4.5",
     "@farmfe/plugin-react": "^1.2.6",
     "@pmmmwh/react-refresh-webpack-plugin": "^0.5.15",
-    "@rsbuild/core": "^1.1.13",
+    "@rsbuild/core": "^1.2.0-alpha.0",
     "@rsbuild/plugin-react": "^1.1.0",
-    "@rspack/cli": "^1.1.8",
-    "@rspack/core": "^1.1.8",
+    "@rspack/cli": "^1.2.0-beta.0",
+    "@rspack/core": "^1.2.0-beta.0",
     "@rspack/plugin-react-refresh": "^1.0.0",
     "@swc/css": "^0.0.28",
     "@types/react": "^18.3.12",