Bump @openzeppelin/contracts from 4.6.0 to 4.9.6

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.6.0 to 4.9.6.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts@v4.6.0...v4.9.6)

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

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

package.json

@@ -73,7 +73,7 @@
     "@eth-optimism/sdk": "3.2.0",
     "@ethersproject/providers": "^5.6.8",
     "@lidofinance/evm-script-decoder": "^0.2.2",
-    "@openzeppelin/contracts": "4.6.0",
+    "@openzeppelin/contracts": "4.9.6",
     "chalk": "4.1.2"
   }
 }