Bump @openzeppelin/contracts from 4.8.3 to 4.9.3 in /solidity

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.8.3 to 4.9.3.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v4.9.3/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts@v4.8.3...v4.9.3)

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

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

solidity/package.json

@@ -20,7 +20,7 @@
     "@ethersproject/bignumber": "^5.0.8",
     "@nomiclabs/hardhat-ethers": "^2.1.0",
     "@nomiclabs/hardhat-waffle": "^2.0.3",
-    "@openzeppelin/contracts": "4.9.2",
+    "@openzeppelin/contracts": "4.9.3",
     "@typechain/ethers-v5": "^5.0.0",
     "@types/chai": "^4.2.13",
     "@types/command-line-args": "^5.0.0",

solidity/yarn.lock

@@ -1128,10 +1128,10 @@
     "@types/sinon-chai" "^3.2.3"
     "@types/web3" "1.0.19"
 
-"@openzeppelin/contracts@4.9.2":
-  version "4.9.2"
-  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.2.tgz#1cb2d5e4d3360141a17dbc45094a8cad6aac16c1"
-  integrity sha512-mO+y6JaqXjWeMh9glYVzVu8HYPGknAAnWyxTRhGeckOruyXQMNnlcW6w/Dx9ftLeIQk6N+ZJFuVmTwF7lEIFrg==
+"@openzeppelin/contracts@4.9.3":
+  version "4.9.3"
+  resolved "https://registry.yarnpkg.com/@openzeppelin/contracts/-/contracts-4.9.3.tgz#00d7a8cf35a475b160b3f0293a6403c511099364"
+  integrity sha512-He3LieZ1pP2TNt5JbkPA4PNT9WC3gOTOlDcFGJW4Le4QKqwmiNJCRt44APfxMxvq7OugU/cqYuPcSBzOw38DAg==
 
 "@protobufjs/aspromise@^1.1.1", "@protobufjs/aspromise@^1.1.2":
   version "1.1.2"