feat: added github workflow to greet contributors when an issue or PR …

[Junaid-Mohamed]

What does this PR do?

This PR fixes the issue opened for a feature of greeting the contributors, during issue and PR opens.

Fixes #201

Requirement/Documentation

For this feature to work, few settings needs to be updated in the current repo, which is as follows

1. Go to setting's of the repo
2. Under Actions tab go to general
3. In general go to workflow permissions and check mark the below option
   • [x] Read and Write permissions.

Once this is completed, your repo will be ready for any new interactions from contributors.

Type of change

• [x] New feature (non-breaking change which adds functionality)

How should this be tested?

For testing this you can open an test issue and the greet-contributors workflow will be triggered and expected outcome of github bot comment can be noticed in the issue.

Note : The owner of the repo can't do this testing, contributors can do it, since there is a check for owner in workflow, which when passes github bot comment won't be generated

Mandatory Tasks

• [x] Make sure you have self-reviewed the code. A decent size PR without self-review might be rejected.

Feel free to reach out through comments if you have any queries.

[github-actions[bot]]

Thank you for following the naming conventions! 🙏