fix: replace old config schemas for extensions and blueprints

to overcome a lot of warnings given during for example testing where
these extensions are used.

Signed-off-by: Hellgren Heikki <heikki.hellgren@op.fi>

plugins/search-react/package.json

@@ -69,7 +69,8 @@
     "lodash": "^4.17.21",
     "qs": "^6.9.4",
     "react-use": "^17.3.2",
-    "uuid": "^11.0.2"
+    "uuid": "^11.0.2",
+    "zod": "^3.25.76 || ^4.0.0"
   },
   "devDependencies": {
     "@backstage/cli": "workspace:^",