Clean up State Branches

[milldr]

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Describe the Feature

The component updater creates and orphans a lot of branches. Any PR that is not merged and is closed creates a stale branch.

Add an (optional) step to the component updater workflow to clean up stale branches

Expected Behavior

The component updater should include an option to regularly clean up stale branches in the same workflow

Use Case

Clean up stale branches every night

Describe Ideal Solution

No persistent stale branches created by this action

Alternatives Considered

Use another tool on a schedule to clean up stale branches. Examples

• https://github.com/beatlabs/delete-old-branches-action
• https://github.com/marketplace/actions/stale-branches
• many more from googling

Additional Context

n/a