fix(deps): update dependency ethers to v5.4.0

Author: renovate-bot

package.json

@@ -9,7 +9,7 @@
   },
   "dependencies": {
     "dotenv": "8.2.0",
-    "ethers": "5.1.4",
+    "ethers": "5.4.0",
     "ethers-multicall": "0.1.6",
     "isomorphic-fetch": "3.0.0",
     "next": "10.0.7",