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
diff --git a/bazel/upb_proto_library.bzl b/bazel/upb_proto_library.bzl
index 3185353..7bcec85 100644
--- a/bazel/upb_proto_library.bzl
+++ b/bazel/upb_proto_library.bzl
@@ -395,6 +395,7 @@
             providers = [ProtoInfo],
         ),
     },
+    provides = [CcInfo],
 )
 
 # upb_proto_reflection_library() ###############################################
@@ -451,4 +452,5 @@
             providers = [ProtoInfo],
         ),
     },
+    provides = [CcInfo],
 )