📌(dependencies) pin vitest to 0.25.7

Vitest 0.26.0 was causing crashes during tests. I posted an issue here
https://github.com/vitest-dev/vitest/issues/2531

packages/react/package.json

@@ -63,6 +63,6 @@
     "typescript": "4.9.4",
     "vite": "4.0.2",
     "vite-plugin-dts": "1.7.1",
-    "vitest": "0.26.0"
+    "vitest": "0.25.7"
   }
 }