added workflow for closing old PRs

[Asymtode712]

Related Issue

Fixes #118

Description

This feature aims to automate the management of open PRs in a repository, ensuring that outdated or abandoned PRs are closed in a timely manner.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.

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Checklist:

• I have performed a self-review of my code
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

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[Asymtode712]

@subhadeeproy3902 please review and merge this PR

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Name	Status	Preview	Comments	Updated (UTC)
blox-ai	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 23, 2024 6:51am

[Asymtode712]

@subhadeeproy3902 i know you have recieved instructions so you have removed level2 label but you can assign me 'level1' label for this PR

The final decision is still yours but i just reminded you

Thank you!