* bump_dependencies.md: add nim-results dependency
* change imports stew/results to results
* switching to Nim 2.0.8
* waku.nimble: reflect the requirement nim 1.6.0 to 2.0.8
Adding --mm:refc as nim 2.0 enables a new garbage collector that we're
not yet ready to support
* adapt waku code to Nim 2.0
* gcsafe adaptations because Nim 2.0 is more strict
* feat: Added simple, configurable rate limit for lightpush and store-query
Adjust lightpush rest response to rate limit, added tests ann some fixes
Add rest store query test for rate limit checks and proper error response
Update apps/wakunode2/external_config.nim
Move chronos/tokenbucket to nwaku codebasee with limited and fixed feature set
Add meterics counter to lightpush rate limits
Co-authored-by: gabrielmer <101006718+gabrielmer@users.noreply.github.com>
