chore: bump hardhat (#1652)

Author: alexandre-abrioux-rf

packages/smart-contracts/package.json

@@ -82,7 +82,7 @@
     "ethereum-waffle": "3.4.4",
     "ethers": "5.7.2",
     "ganache-cli": "6.12.0",
-    "hardhat": "2.22.15",
+    "hardhat": "2.26.5",
     "solhint": "3.3.6",
     "typechain": "8.3.2",
     "typescript": "4.8.4",