[Misc] Make log statistics interval configurable

[Sakalya]

This PR aims to make "interval" for logging stats configurable.

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[Sakalya]

@markmc Can you help to review this please ?

[NickLucche]

Thanks for your PR!
I don't think you need to ping the whole squad of maintainers to review this though 🤔

PR probably belongs to the [Misc] category. Also, try to address the DCO check to make it ready for merging first.

[Sakalya]

Thanks @NickLucche. I have addressed DCO failures. Could you please help to review the PR ?