build(deps): Bump @openzeppelin/contracts from 4.4.2 to 4.9.3

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.4.2 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@v4.4.2...v4.9.3)

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

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

packages/payment-processor/package.json

@@ -39,7 +39,7 @@
     "test:watch": "yarn test --watch"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "4.7.3",
+    "@openzeppelin/contracts": "4.9.3",
     "@requestnetwork/currency": "0.9.0",
     "@requestnetwork/payment-detection": "0.36.0",
     "@requestnetwork/smart-contracts": "0.29.0",

packages/smart-contracts/package.json

@@ -58,7 +58,7 @@
     "@nomiclabs/hardhat-etherscan": "3.1.7",
     "@nomiclabs/hardhat-waffle": "2.0.1",
     "@nomiclabs/hardhat-web3": "2.0.0",
-    "@openzeppelin/contracts": "4.4.2",
+    "@openzeppelin/contracts": "4.9.3",
     "@openzeppelin/test-helpers": "0.5.6",
     "@requestnetwork/currency": "0.9.0",
     "@requestnetwork/types": "0.36.0",

yarn.lock

@@ -4097,20 +4097,15 @@
     fs-extra "^8.1.0"
     try-require "^1.2.1"
 
-"@openzeppelin/contracts@4.4.2":
-  version "4.4.2"
-  resolved "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.4.2.tgz"
-  integrity sha512-NyJV7sJgoGYqbtNUWgzzOGW4T6rR19FmX1IJgXGdapGPWsuMelGJn9h03nos0iqfforCbCB0iYIR0MtIuIFLLw==
-
 "@openzeppelin/contracts@4.5.0":
   version "4.5.0"
   resolved "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.5.0.tgz"
   integrity sha512-fdkzKPYMjrRiPK6K4y64e6GzULR7R7RwxSigHS8DDp7aWDeoReqsQI+cxHV1UuhAqX69L1lAaWDxenfP+xiqzA==
 
-"@openzeppelin/contracts@4.7.3":
-  version "4.7.3"
-  resolved "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-4.7.3.tgz"
-  integrity sha512-dGRS0agJzu8ybo44pCIf3xBaPQN/65AIXNgK8+4gzKd5kbvlqyxryUYVLJv7fK98Seyd2hDZzVEHSWAh0Bt1Yw==
+"@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==
 
 "@openzeppelin/test-helpers@0.5.6":
   version "0.5.6"