feat: update hardhat version; chore: regenerate lock file;

.gitignore

@@ -1,4 +1,8 @@
+# yarn
 **/yarn-error.log*
+.yarn/*
+!.yarn/plugins
+!.yarn/releases
 
 # dependencies
 **/node_modules

.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

packages/contract/package.json

@@ -13,11 +13,9 @@
     "prettier:fix": "prettier --ignore-unknown --no-error-on-unmatched-pattern --ignore-path .prettierignore --check ."
   },
   "devDependencies": {
-    "@nomicfoundation/hardhat-toolbox": "^2.0.1",
-    "hardhat": "^2.12.7",
-    "solhint": "3.3.8",
     "@nomicfoundation/hardhat-chai-matchers": "^1.0.6",
     "@nomicfoundation/hardhat-network-helpers": "^1.0.8",
+    "@nomicfoundation/hardhat-toolbox": "^2.0.1",
     "@nomiclabs/hardhat-ethers": "^2.2.2",
     "@nomiclabs/hardhat-etherscan": "^3.1.6",
     "@typechain/ethers-v5": "^10.2.0",
@@ -26,11 +24,12 @@
     "@types/mocha": "^10.0.1",
     "chai": "^4.3.7",
     "dotenv": "^16.0.3",
+    "hardhat": "^2.17.1",
     "hardhat-gas-reporter": "^1.0.9",
+    "solhint": "3.3.8",
     "solidity-coverage": "^0.8.2",
     "ts-node": "^10.9.1",
     "typechain": "^8.1.1",
     "typescript": "^4.9.5"
-  },
-  "dependencies": {}
+  }
 }