build(deps-dev): bump @openzeppelin/contracts from 3.4.1 to 3.4.2

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 3.4.1 to 3.4.2.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md)
- [Commits](https://github.com/OpenZeppelin/openzeppelin-contracts/commits/v3.4.2)

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

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

Author: dependabot[bot]

yarn.lock

@@ -695,9 +695,9 @@
     "@types/web3" "1.0.19"
 
 "@openzeppelin/contracts@^3.4.1":
-  version "3.4.1"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.4.1.tgz#03c891fec7f93be0ae44ed74e57a122a38732ce7"
-  integrity sha512-cUriqMauq1ylzP2TxePNdPqkwI7Le3Annh4K9rrpvKfSBB/bdW+Iu1ihBaTIABTAAJ85LmKL5SSPPL9ry8d1gQ==
+  version "3.4.2"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-3.4.2.tgz#d81f786fda2871d1eb8a8c5a73e455753ba53527"
+  integrity sha512-z0zMCjyhhp4y7XKAcDAi3Vgms4T2PstwBdahiO0+9NaGICQKjynK3wduSRplTgk4LXmoO1yfDGO5RbjKYxtuxA==
 
 "@openzeppelin/hardhat-upgrades@^1.6.0":
   version "1.9.0"