Make commit signing reusable

[dms1981]

User Story

As a Modernisation Platform Engineer
I want to see if we can aggregate the script steps for commit signing
So that we can easily apply commit signing to workflows in a manageable way

Value / Purpose

Putting the steps for commit signing in one place will make them easier to manage and easier to apply to multiple actions.

Context / Background

At present we use inline script statements for commit signing. Can we move these into a separate script, or a reusable workflow? A script statement is probably easier, but there might be other dependencies that mean a reusable workflow statement is more appropriate.

I noticed that at least one action - Generate Dependabot File - is not currently signing its commits.

Useful Contacts

No response

Additional Information

No response

Definition of Done

• Options investigated
• Commit signing moved from inline comments
• Commit signing tested OK