Bump @openzeppelin/contracts from 4.7.3 to 4.9.3 in /assets/eip-5727

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.7.3 to 4.9.3.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.9.3/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts@v4.7.3...v4.9.3)

---
updated-dependencies:
- dependency-name: "@openzeppelin/contracts"
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

assets/eip-5727/package.json

@@ -4,7 +4,7 @@
   "description": "EIP-5727: Semi-Fungible Soulbound Token",
   "author": "Austin Zhu",
   "dependencies": {
-    "@openzeppelin/contracts": "4.9.3"
+    "@openzeppelin/contracts": "4.9.6"
   },
   "devDependencies": {
     "@nomicfoundation/hardhat-toolbox": "2.0.0",