the `apply-to-closed` option is missing

[yegor256]

Would be great to have a new option apply-to-closed. If it's true, we should modify closed issues too. Otherwise, only open ones.

[github-actions]

🤖 I've analyzed¹ this issue title and have a suggestion for improvement:

Current title: the apply-to-closed option is missing
Suggested title: Add \apply-to-closed` option to modify closed issues`

Footnotes

1. Suggested by issue-title-ai ↩

[horw]

This option was added with #25 PR

[yegor256]

@horw thanks!