Replace label_tag with form.label in Deploy Token UI

What does this MR do?

Replaces label_tag with form.label in Deploy Token UI.

Part of #23855

Blocks !58846 (merged)

Screenshots (strongly suggested)

TBD

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have not included a changelog entry because ~"technical debt" in frontend .
• Code review guidelines
• Style guides
• Separation of EE specific content