Bump Azure.Messaging.ServiceBus from 7.18.3 to 7.18.4 in /src

Bumps [Azure.Messaging.ServiceBus](https://github.com/Azure/azure-sdk-for-net) from 7.18.3 to 7.18.4.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.Messaging.ServiceBus_7.18.3...Azure.Messaging.ServiceBus_7.18.4)

---
updated-dependencies:
- dependency-name: Azure.Messaging.ServiceBus
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

src/Directory.Packages.props

@@ -10,7 +10,7 @@
     <PackageVersion Include="AWSSDK.SecurityToken" Version="3.7.401.45" />
     <PackageVersion Include="AWSSDK.SQS" Version="3.7.400.96" />
     <PackageVersion Include="Azure.Identity" Version="1.13.2" />
-    <PackageVersion Include="Azure.Messaging.ServiceBus" Version="7.18.3" />
+    <PackageVersion Include="Azure.Messaging.ServiceBus" Version="7.18.4" />
     <PackageVersion Include="Azure.Monitor.Query" Version="1.6.0" />
     <PackageVersion Include="GitHubActionsTestLogger" Version="2.4.1" />
     <PackageVersion Include="ICSharpCode.Decompiler" Version="8.2.0.7535" />