Enhancement: [no-explicit-any] suggest to replace keyof any with PropertyKey

[KuSh]

Before You File a Proposal Please Confirm You Have Done The Following...

• I have searched for related issues and found none that match my proposal.
• I have searched the current rule list and found no rules that match my proposal.
• I have read the FAQ and my problem is not listed.

My proposal is suitable for this project

• I believe my proposal would be useful to the broader TypeScript community (meaning it is not a niche proposal).

Link to the rule's documentation

https://typescript-eslint.io/rules/no-explicit-any

Description

Suggest to replace keyof any (and keyof never?) with PropertyKey as it is more explicit.
This can even be an auto fixable thing.

Fail

const integer = <TKey extends keyof any, TTarget extends { [K in TKey]: number }>(
  target: TTarget,
  key: TKey
) => { /* ... */ };

Pass

const integer = <TKey extends PropertyKey, TTarget extends { [K in TKey]: number }>(
  target: TTarget,
  key: TKey
) => { /* ... */ };

Additional Info

Extracted from #3206

[JoshuaKGoldberg]

Interesting idea! My vote is 👍, this would be a nice improvement to the rule. Knowing that keyof any gives string | number | symbol / PropertyKey is a bit niche of knowledge. I'd wager that some non-trivial slice of users have copy & pasted it then gotten confused about the rule reporting.