Update hardhat to 3.1.4 (#513)

Author: makoto

bun.lock

@@ -48,7 +48,7 @@
     "chai": "^5.1.1",
     "dotenv": "^16.4.5",
     "ethers": "^6.15.0",
-    "hardhat": "3.0.1",
+    "hardhat": "3.1.4",
     "hardhat-deploy": "^2.0.0-next.35",
     "husky": "^9.1.7",
     "prettier": "^2.6.2",
@@ -71,7 +71,7 @@
     "glob": "^11.0.3"
   },
   "resolutions": {
-    "hardhat": "3.0.1"
+    "hardhat": "3.1.4"
   },
   "directories": {
     "test": "test"