Bump azure-core from 1.15.0 to 1.16.0

Bumps [azure-core](https://github.com/Azure/azure-sdk-for-java) from 1.15.0 to 1.16.0.
- [Release notes](https://github.com/Azure/azure-sdk-for-java/releases)
- [Commits](Azure/azure-sdk-for-java@azure-core_1.15.0...azure-core_1.16.0)

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

Author: dependabot[bot]

gradle/dependencies.gradle

@@ -9,5 +9,5 @@ dependencies {
     implementation 'com.google.guava:guava:30.1.1-jre'
 
     implementation 'com.google.code.gson:gson:2.8.6'
-    api 'com.azure:azure-core:1.15.0'
+    api 'com.azure:azure-core:1.16.0'
 }