Adapt deprecation level for management.health.influxdb.enabled

[snicoll]

Reviewing #46535, I can see the HealthIndicator has been removed in Spring Boot 3.4 but the manual configuration property is still documented as being supported. We should move that to an ERROR deprecation level.

[zahra7]

Hi, I’d like to work on this issue. Is it okay if I take it?

[snicoll]

Sure thing, the issue is yours.

[snicoll]

@zahra7 I am going to take over if you don't mind as the PR you've submitted isn't going in the right direction.

[zahra7]

Sorry, I've just seen your message after the pull request. No problem, I'm new to the open-source contribution

[snicoll]

No problem. I think this PR is heading in the right direction. Let's continue the discussion over there.