Add user perm check on backend when deleting a tag

[jh-RLI]

Summary of the discussion

Avoid unwanted deletion of OEP-Tags.

Type of change (CHANGELOG.md)

Bugs

• Add backend check to avoid unwanted oep database tag delete requests from client (#)

Workflow checklist

Automation

Closes #1915

PR-Assignee

• 🐙 Follow the workflow in CONTRIBUTING.md
• 📝 Update the CHANGELOG.md
• 📙 Update the documentation on mkdocs

Reviewer

• 🐙 Follow the Reviewer Guidelines
• 🐙 Provided feedback and show sufficient appreciation for the work done