Bump @openzeppelin/contracts in /packages/automation-contracts/scheduler

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.9.5 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@v4.9.5...v4.9.6)

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

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

packages/automation-contracts/scheduler/package.json

@@ -14,7 +14,7 @@
     },
     "devDependencies": {
         "@superfluid-finance/metadata": "^1.1.27",
-        "@openzeppelin/contracts": "4.9.5",
+        "@openzeppelin/contracts": "4.9.6",
         "@superfluid-finance/ethereum-contracts": "1.9.0"
     }
 }