build(deps): bump @openzeppelin/contracts from 4.8.3 to 4.9.3

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.8.3 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@v4.8.3...v4.9.3)

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

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -7,7 +7,7 @@
     "postinstall": "npm run compile"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^4.8.3",
+    "@openzeppelin/contracts": "^4.9.3",
     "solidity-bytes-utils": "0.8.0",
     "solidity-rlp": "^2.0.8",
     "solidity-stringutils": "git+https://github.com/ibc-solidity/solidity-stringutils.git#716294569dd2304ae8d81681951733542f999015",