GitHub Actions: Implement automated daily stargazer data collection

[AbhinavKumarjss]

Closes: #2602

A GitHub Actions workflow (fetch-stargazers.yml) runs automatically every day at midnight UTC to:

1. Fetch all stargazers for the Keploy repository
2. Enrich the data with user details
3. Save the data in both JSON and CSV formats in the data/ directory
4. Commit and push the changes to the repository

[amaan-bhati]

Hey @AbhinavKumarjss , Thanks for the PR! But this issue is already covered in #6 . If that PR review fails, we can consider your PR but make sure you have tested it on your end. Keep a check on:

1.Have you tested the workflow locally and on your branch to ensure it works as intended?
2.Did you try to manually trigger the GitHub Actions job for testing purposes?
3.How does the workflow handle API rate limits during both all-time and last 24 hours fetches?
4Are the JSON files (stargazers.json, stargazers_last_24h.json) correctly generated and stored in the data/ directory?

It would be helpful if you could share any logs, screenshots, or test results or a video from your testing.

[keploy]

Nice Pr 😄. We currently support Unit Test Generation only for Go projects.
Stay tuned – support for more languages is coming soon! 🚀