Add support to dill serializer#406

Draft

GregoirePelegrin wants to merge 3 commits intocelery:mainfrom

GregoirePelegrin:dill_serialization

Commits on Jun 26, 2024

Fix #405
Grégoire PELEGRIN
committed

Commits on Jul 1, 2024

Adding dill in requirements
Grégoire PELEGRIN
committed

Commits on Jul 4, 2024

Adding dill-specific tests
Grégoire PELEGRIN
committed