Revert eslint and hardhat upgrades

Author: acenolaza

package.json

@@ -36,8 +36,8 @@
     "@types/mocha": ">=10.0.10",
     "chai": "^4.5.0",
     "dotenv": "^17.2.3",
-    "eslint": "^9.39.1",
-    "hardhat": "^3.0.16",
+    "eslint": "^8.57.1",
+    "hardhat": "^2.27.1",
     "hardhat-deploy": "^1.0.4",
     "hardhat-gas-reporter": "^2.3.0",
     "prettier": "^3.7.3",