Bump Confluent.Kafka from 2.5.2 to 2.5.3 in /claim-check/code-samples (…

…#165)

Bumps [Confluent.Kafka](https://github.com/confluentinc/confluent-kafka-dotnet) from 2.5.2 to 2.5.3.
- [Release notes](https://github.com/confluentinc/confluent-kafka-dotnet/releases)
- [Changelog](https://github.com/confluentinc/confluent-kafka-dotnet/blob/master/CHANGELOG.md)
- [Commits](confluentinc/confluent-kafka-dotnet@v2.5.2...v2.5.3)

---
updated-dependencies:
- dependency-name: Confluent.Kafka
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

claim-check/code-samples/sample-4/ClientProducer4/ClientProducer4.csproj

@@ -20,7 +20,7 @@
 		</ItemGroup>
 
 		<ItemGroup>
-				<PackageReference Include="Confluent.Kafka" Version="2.5.2" />
+				<PackageReference Include="Confluent.Kafka" Version="2.5.3" />
 				<PackageReference Include="Azure.Identity" Version="1.11.4" />
 				<PackageReference Include="Azure.Storage.Blobs" Version="12.19.1" />
 				<PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />