Bump com.azure.spring:spring-cloud-azure-dependencies in /auth

Bumps [com.azure.spring:spring-cloud-azure-dependencies](https://github.com/Azure/azure-sdk-for-java) from 5.14.0 to 5.16.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@spring-cloud-azure_5.14.0...spring-cloud-azure_5.16.0)

---
updated-dependencies:
- dependency-name: com.azure.spring:spring-cloud-azure-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

auth/build.gradle.kts

@@ -45,7 +45,7 @@ configurations.all {
 
 dependencyManagement {
     imports {
-        mavenBom("com.azure.spring:spring-cloud-azure-dependencies:5.14.0")
+        mavenBom("com.azure.spring:spring-cloud-azure-dependencies:5.16.0")
         mavenBom("org.springframework.cloud:spring-cloud-dependencies:2023.0.3")
     }
 }