Bump Zeebe to 8.6.0

[tmetzke]

Description

• Bumps the version in the Java guide
• Does not adjust any other guide
  • Go client has moved to the community - needs clarification from @megglos what to do with this in the future.
  • Spring has a newer dedicated guide - will be clarified in https://github.com/camunda/developer-experience/issues/406

[berkaycanbc]

@tmetzke does changes in Spring blocking us from bumping its version to 8.6.0? I think, we can just move forward with bumping Spring version and make changes later when a decision made there.

For Go client, again, we can tackle (possibly remove) it in a separate issue.

[tmetzke]

@tmetzke does changes in Spring blocking us from bumping its version to 8.6.0? I think, we can just move forward with bumping Spring version and make changes later when a decision made there.

For Go client, again, we can tackle (possibly remove) it in a separate issue.

I would postpone to adjust the Spring guide altogether now, to be honest. It uses the community SDK still, not the Camunda SDK. I would treat this the same way we treat the Go, C#, JS, etc guides: this is not our responsibility because we don't own this.

[tmetzke]

Bumping to 8.6.1 already.

[megglos]

Superseded by holistic update of all samples to 8.6.x #349

Thanks for triggering the alignment on future maintenance.