Make scala_proto_aspect have "provides = [ScalaProtoAspectInfo]" (#1549)

Author: timothyg-stripe

scala_proto/private/scala_proto_aspect.bzl

@@ -208,6 +208,7 @@ def make_scala_proto_aspect(*extras):
         implementation = _scala_proto_aspect_impl,
         attr_aspects = ["deps"],
         incompatible_use_toolchain_transition = True,
+        provides = [ScalaProtoAspectInfo],
         attrs = dicts.add(
             attrs,
             extras_phases(extras),