Bump @openzeppelin/contracts-upgradeable from 4.7.3 to 4.9.2

Bumps [@openzeppelin/contracts-upgradeable](https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable) from 4.7.3 to 4.9.2.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts-upgradeable/blob/v4.9.2/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts-upgradeable@v4.7.3...v4.9.2)

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

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

Author: dependabot[bot]

package.json

@@ -40,7 +40,7 @@
 		"@nomiclabs/hardhat-etherscan": "3.1.3",
 		"@nomiclabs/hardhat-waffle": "2.0.3",
 		"@openzeppelin/contracts": "4.7.3",
-		"@openzeppelin/contracts-upgradeable": "4.7.3",
+		"@openzeppelin/contracts-upgradeable": "4.9.2",
 		"@superfluid-finance/ethereum-contracts": "1.5.0",
 		"@superfluid-finance/sdk-core": "0.6.1",
 		"chai": "4.3.7",