chore(deps): update dependency vite-plugin-istanbul to v6

Author: renovate[bot]

package.json

@@ -64,7 +64,7 @@
     "substyle-glamor": "4.1.2",
     "typescript": "5.4.3",
     "vite": "3.2.8",
-    "vite-plugin-istanbul": "5.0.0"
+    "vite-plugin-istanbul": "6.0.0"
   },
   "peerDependencies": {
     "react": ">=16.8.0",