Outdated GitHub issues are dangling around

[mugdha-adhav]

We might want to add stale-bot on GitHub issues to prevent outdated open issues.

ToDo:

• Decide the criteria and timelines for closing issues.
• Add a stale-bot, probably in GitHub workflows.

[mbtamuli]

GitHub itself provides a action to warn and close stale issues - https://github.com/actions/stale

[mugdha-adhav]

@mbtamuli could you please help with the verification of this change as the automation will run in ~12 hours.

Once you confirm, will delete the variable added for dry-run.

[mbtamuli]

@mugdha-adhav it ran https://github.com/warm-metal/csi-driver-image/actions/runs/7535475167/job/20511507340.

I think we can remove the variable now.