feat: Ability to collect /proc/fs/fscache/stats

[mmolisch]

Hello, the support to parse fscache is in procfs repo, but collector here is missing. Any plans to add it?

[prinjal]

Hi @mmolisch 👋🏼

Thanks for highlighting this! Just wondering — are you currently working on this, or would it be okay if I picked it up as my first contribution? I’d be happy to help implement the collector for /proc/fs/fscache/stats if it's still open.

Let me know what works best!

[mmolisch]

Hello, PR is open, but with not response #3321