chore(deps): bump @openzeppelin/contracts from 4.9.3 to 4.9.6

Bumps [@openzeppelin/contracts](https://github.com/OpenZeppelin/openzeppelin-contracts) from 4.9.3 to 4.9.6.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-contracts/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CHANGELOG.md)
- [Commits](OpenZeppelin/openzeppelin-contracts@v4.9.3...v4.9.6)

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

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

packages/contracts/package.json

@@ -6,7 +6,7 @@
     "publish": "yarn npm publish --access=public"
   },
   "dependencies": {
-    "@openzeppelin/contracts": "^4.9.3",
+    "@openzeppelin/contracts": "^4.9.6",
     "dotenv": "^16.3.1"
   }
 }

yarn.lock

@@ -2446,10 +2446,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@openzeppelin/contracts@npm:^4.9.3":
-  version: 4.9.3
-  resolution: "@openzeppelin/contracts@npm:4.9.3"
-  checksum: 4932063e733b35fa7669b9fe2053f69b062366c5c208b0c6cfa1ac451712100c78acff98120c3a4b88d94154c802be05d160d71f37e7d74cadbe150964458838
+"@openzeppelin/contracts@npm:^4.9.6":
+  version: 4.9.6
+  resolution: "@openzeppelin/contracts@npm:4.9.6"
+  checksum: 274b6e968268294f12d5ca4f0278f6e6357792c8bb4d76664f83dbdc325f780541538a127e6a6e97e4f018088b42f65952014dec9c745c0fa25081f43ef9c4bf
   languageName: node
   linkType: hard
 
@@ -2771,7 +2771,7 @@ __metadata:
   version: 0.0.0-use.local
   resolution: "@zk-email/contracts@workspace:packages/contracts"
   dependencies:
-    "@openzeppelin/contracts": ^4.9.3
+    "@openzeppelin/contracts": ^4.9.6
     dotenv: ^16.3.1
   languageName: unknown
   linkType: soft