Update dependency ethers to v5.5.1

Author: renovate-bot

package.json

@@ -40,7 +40,7 @@
 		"eslint-config-xo": "0.39.0",
 		"eslint-config-xo-typescript": "0.44.0",
 		"ethereum-waffle": "3.4.0",
-		"ethers": "5.4.7",
+		"ethers": "5.5.1",
 		"hardhat": "2.6.7",
 		"husky": "7.0.4",
 		"mocha": "9.1.3",