Extend prefixes to patterns in TEZTOWNERS
TEZTOWNER files declares a "prefix" path for catching unit Alco-Tezts and mapping them to a product.
This aims to short, as tezt --match
already supports extended patterns, so we can expand the syntax to cover associations like:
^/proto_*/lib_delegate/"
"/prooto_*/lib_protocol/tests/unit/test_*_repr.ml
etc.