Added Automate PR-Message

[shubhammjha22]

Description

The changes made in this pull request should be briefly described.
Added automate greeting when a PR is made

Resolves: #1038

Checklist

Before submitting this pull request, kindly verify that the ensuing checkpoints have been reached.

• Have you adhered to the repository's defined coding convention rules?
• Have you updated the 'documentation.md' file with the method/function documentation?
• Have you sent a message along with the result or response?
• Have you used the try-catch technique?
• Has the method/class been added to the documentation (md file)?

Screenshots

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I certify that I have carried out the relevant checks and provided the requisite screenshot for validation by submitting this pull request.

[nikhil25803]

Can you include it in one of your repo, try and post a screenshot of the results here.

[shubhammjha22]

Sure here it is -

github.bot.demo.mp4

also u can try to raise a PR or issue on my repo -

[shubhammjha22]

@nikhil25803 Also kindly add the apt label and label in this PR .
Thank you