Bump @openzeppelin/contracts from 4.9.3 to 4.9.6 (#921)

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.9.3 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@v4.9.3...v4.9.6)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Klemen <64400885+zajck@users.noreply.github.com>

package.json

@@ -86,7 +86,7 @@
  "estimate-limits": "npx hardhat clean && npx hardhat compile && npx hardhat estimate-limits"
  },
  "dependencies": {
- "@openzeppelin/contracts": "^4.9.0",
+ "@openzeppelin/contracts": "^4.9.6",
  "@openzeppelin/contracts-upgradeable": "4.9.3"
  },
  "devDependencies": {