spring.boot.admin.client.url default value doesn't support contextPath

[RaphC]

Hi,

Thanks for this pretty nice project.

In SpringBoot it's possible to specify management context path trough tow tokens. Here is a sample in yaml :

management:
  contextPath:

or

management:
  context-path:

spring-boot admin only uses ${management.context-path} token to complete spring.boot.admin.client.url if not specified by the client.

Can you add the support of ${management.contextPath}

Regards