Bump Azure.Messaging.ServiceBus from 5.1.0 to 7.6.0

Bumps [Azure.Messaging.ServiceBus](https://github.com/Azure/azure-sdk-for-net) from 5.1.0 to 7.6.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-net/releases)
- [Commits](Azure/azure-sdk-for-net@Azure.AI.TextAnalytics_5.1.0...Azure.Messaging.ServiceBus_7.6.0)

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

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

src/HealthChecks.AzureServiceBus/HealthChecks.AzureServiceBus.csproj

@@ -10,7 +10,7 @@
 
   <ItemGroup>
     <PackageReference Include="Azure.Messaging.EventHubs" Version="5.6.2" />
-    <PackageReference Include="Azure.Messaging.ServiceBus" Version="7.4.0" />
+    <PackageReference Include="Azure.Messaging.ServiceBus" Version="7.6.0" />
     <PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks" Version="6.0.2" />
   </ItemGroup>