Bump @openzeppelin/contracts from 4.9.3 to 4.9.6 in /ts-tests (#2721)

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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

ts-tests/package.json

@@ -12,7 +12,7 @@
 		"@acala-network/api": "~6.0.4",
 		"@acala-network/bodhi": "~2.7.16",
 		"@babel/runtime": "^7.21.5",
-		"@openzeppelin/contracts": "4.9.3",
+		"@openzeppelin/contracts": "4.9.6",
 		"@polkadot/api": "^10.9.1",
 		"@types/chai": "^4.2.22",
 		"@types/chai-as-promised": "^7.1.4",

ts-tests/yarn.lock

@@ -1154,10 +1154,10 @@ __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
 
@@ -10459,7 +10459,7 @@ __metadata:
     "@acala-network/api": ~6.0.4
     "@acala-network/bodhi": ~2.7.16
     "@babel/runtime": ^7.21.5
-    "@openzeppelin/contracts": 4.9.3
+    "@openzeppelin/contracts": 4.9.6
     "@polkadot/api": ^10.9.1
     "@types/chai": ^4.2.22
     "@types/chai-as-promised": ^7.1.4