feat: upgrade @typechain/hardhat from 6.1.6 to 9.0.0

Snyk has created this PR to upgrade @typechain/hardhat from 6.1.6 to 9.0.0.

See this package in npm:
https://www.npmjs.com/package/@typechain/hardhat

See this project in Snyk:
https://app.snyk.io/org/woodpile37/project/eaa950b3-6965-41cb-81f7-f4502e60f977?utm_source=github&utm_medium=referral&page=upgrade-pr

assets/eip-6220/package.json

@@ -11,7 +11,7 @@
     "@openzeppelin/test-helpers": "^0.5.15",
     "@primitivefi/hardhat-dodoc": "^0.2.3",
     "@typechain/ethers-v5": "^11.1.1",
-    "@typechain/hardhat": "^6.1.2",
+    "@typechain/hardhat": "^9.0.0",
     "@types/chai": "^4.3.1",
     "@types/mocha": "^10.0.1",
     "@types/node": "^20.5.9",