Bump openzeppelin-solidity from 4.1.0 to 4.2.0

Bumps [openzeppelin-solidity](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.1.0 to 4.2.0.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts@v4.1.0...v4.2.0)

---
updated-dependencies:
- dependency-name: openzeppelin-solidity
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

package.json

@@ -12,7 +12,7 @@
 		"eslint": "^7.13.0",
 		"ganache-core": "^2.13.2",
 		"jquery": "3.6.0",
-		"openzeppelin-solidity": "4.1.0",
+		"openzeppelin-solidity": "4.2.0",
 		"solidity-coverage": "^0.7.16",
 		"truffle-assertions": "^0.9.1",
 		"truffle-contract": "4.0.31",