Is your feature request related to a problem? Please describe.
When creating commits directly in the web interface of GitHub they are automatically signed by GitHub.

It would be nice to have the possibility to create a signed annotated tag using github.rest.git.createTag in a workflow.
When the workflow is executed on the workflow_dispatch event it is manual so I think it should behave like a "commits created directly in the web interface of GitHub" and get automatically signed by GitHub.
If not possible, please add the possibility to sign it manually (from inside a workflow).

Describe the solution you'd like
The possibility to automatically or manually sign annotated tags.

Describe alternatives you've considered
None.