* 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
* Refactor of FilterV2 subscription handling and maintenance with addition subscription time-to-live support.
Fixed all tests and reworked where subscription handling changes needed it.
Adapted REST API /admin filter subscription retrieve to new filter subscription structure.
* Fix tests and PR comments
* Added filter v2 subscription timeout tests and fixed
* Fix review comments and suggestions. No functional change.
* Remove leftover echoes from test_rest_admin
* Fix failed legacy filter tests due to separation of mounting the filters.
* Small fixes, fix naming typo, removed duplicated checks in test
Ivan FB
Darshan K
Simon-Pierre Vivier
NagyZoltanPeter
Hanno Cornelius