chore(deps): update dependency viem to v2

Author: renovate[bot]

playgrounds/wagmi/package.json

@@ -13,6 +13,6 @@
     "@use-wagmi/nuxt": "^1.1.8",
     "nuxt": "^3.8.2",
     "use-wagmi": "^0.4.9",
-    "viem": "^1.20.3"
+    "viem": "^2.0.6"
   }
 }