chore: Replace rmfr with rimraf

[koooge]

Hi there,

• chore: Replace rmfr with rimraf since rmfr's dependencies are deprecated.

$ npm i -D kanel@3.9.0
...

npm warn deprecated inflight@1.0.6: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm warn deprecated glob@7.2.3: Glob versions prior to v9 are no longer supported
npm warn deprecated rimraf@2.7.1: Rimraf versions prior to v4 are no longer supported

[kristiandupont]

Thank you for this!