gradle-auth-root: bump com.azure.spring:spring-cloud-azure-starter-ac…

…tive-directory-b2c (#1210)

Bumps [com.azure.spring:spring-cloud-azure-starter-active-directory-b2c](https://github.com/Azure/azure-sdk-for-java) from 5.13.0 to 5.16.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@spring-cloud-azure_5.13.0...spring-cloud-azure_5.16.0)

---
updated-dependencies:
- dependency-name: com.azure.spring:spring-cloud-azure-starter-active-directory-b2c
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

samples/azure-ad-b2c-sample/auth-backend/dependencies.gradle

@@ -7,7 +7,7 @@ ext {
 
     // -- DEPENDENCIES
     springdocOpenapiVersion = "2.5.0"
-    activeDirectoryVersion = "5.13.0"
+    activeDirectoryVersion = "5.16.0"
     springCloudAzureVersion = "5.16.0"
 
     supportDependencies = [