Update dependency hardhat to v2.26.5

Author: renovate[bot]

package.json

@@ -37,7 +37,7 @@
 		"ethereum-waffle": "3.4.4",
 		"ethers": "5.6.1",
 		"fast-deep-equal": "3.1.3",
-		"hardhat": "2.9.9",
+		"hardhat": "2.26.5",
 		"husky": "7.0.4",
 		"js-base64": "3.7.7",
 		"mocha": "9.2.2",