fix: pin rsbuild/core version to 1.2.0 (#154)

Author: dvdanielamoitzi

package.json

@@ -34,7 +34,7 @@
   },
   "dependencies": {
     "@kesills/eslint-config-airbnb-typescript": "^20.0.0",
-    "@rsbuild/core": "^1.2.0",
+    "@rsbuild/core": "1.2.0",
     "@rsbuild/plugin-node-polyfill": "^1.4.0",
     "@rsbuild/plugin-react": "^1.1.0",
     "@rsbuild/plugin-sass": "^1.2.0",