updates the pinned gospel version, to bring its latest compatibility-breaking changes,
bring support for patterns as arguments of anonymous functions, following ocaml-gospel/gospel#309.
As soon as gospel 0.2 is released, the pin should be dropped and converted into a regular version dependency, but this will help transition smoothly until then.
This PR:
As soon as gospel 0.2 is released, the pin should be dropped and converted into a regular version dependency, but this will help transition smoothly until then.