trivial: upgrade tsgo to beta release (#3194)

We were already on the alpha, so there's nothing to do.


https://devblogs.microsoft.com/typescript/announcing-typescript-7-0-beta/

Author: david-crespo

package-lock.json

@@ -92,7 +92,7 @@
     "@types/react-is": "^19.2.0",
     "@types/semver": "^7.7.1",
     "@types/uuid": "^10.0.0",
-    "@typescript/native-preview": "^7.0.0-dev.20260212.1",
+    "@typescript/native-preview": "^7.0.0-dev.20260421.2",
     "@vitejs/plugin-basic-ssl": "^2.1.0",
     "@vitejs/plugin-react-swc": "^4.2.1",
     "autoprefixer": "^10.4.20",