Make upb_proto_[reflection_]library advertise that it returs CcInfo.

This makes it properly work with aspects that require CcInfo, like cc_shared_library().

PiperOrigin-RevId: 532117410

bazel/upb_proto_library.bzl

@@ -395,6 +395,7 @@ upb_proto_library = rule(
             providers = [ProtoInfo],
         ),
     },
+    provides = [CcInfo],
 )
 
 # upb_proto_reflection_library() ###############################################
@@ -451,4 +452,5 @@ upb_proto_reflection_library = rule(
             providers = [ProtoInfo],
         ),
     },
+    provides = [CcInfo],
 )