docs(spring-zeebe-sdk): remove references to old annotation

[nicpuppa]

Description

Removed references to old @ZeebeWorker annotation, deprecated since 8.1.
Replaced with @Jobworker annotation

closes: #3699

When should this change go live?

• This change is not yet live and should not be merged until {ADD_DATE} (apply hold label or convert to draft PR)?
• There is no urgency with this change.
• This change or page is part of a marketing blog, conference talk, or something else on a schedule.
• This functionality is already available but undocumented.
• This is a bug fix or security concern.

PR Checklist

• I have added changes to the relevant /versioned_docs directory, or they are not for an already released version.
• I have added changes to the main /docs directory (aka /next/), or they are not for future versions.
• My changes require an Engineering review, and I've assigned an engineering manager or tech lead as a reviewer, or my changes do not require an Engineering review.
• My changes require a technical writer review, and I've assigned @christinaausley as a reviewer, or my changes do not require a technical writer review.

[ana-vinogradova-camunda]

LGTM 🚀
❓ Where do we mention that "autoComplete" default value has changes from "false" to "true"?

[nicpuppa]

❓ Where do we mention that "autoComplete" default value has changes from "false" to "true"?

Is already mentioned in the SDK documentation @ana-vinogradova-camunda