Feat: Workflow for closing old PRs

[Asymtode712]

Describe the feature

This feature aims to automate the management of open PRs in a repository, ensuring that outdated or abandoned PRs are closed in a timely manner. By doing so, it helps maintain repository hygiene, improves workflow efficiency, and provides a better experience for both maintainers and contributors.

[Asymtode712]

@aswinikalyan30 please assign me this issue under gssoc'24

[aswinikalyan30]

Sure