Refactor AttributeInfo into a proto

This is a no-op in functionality, but begins to pave the way for a proto output format for Stardoc.

RELNOTES: None.
PiperOrigin-RevId: 244020123
diff --git a/src/BUILD b/src/BUILD
index 5026e34..2844953 100644
--- a/src/BUILD
+++ b/src/BUILD
@@ -497,6 +497,7 @@
         "//src/main/java/com/google/devtools/build/lib/buildeventstream/proto:dist_jars",
         "//src/main/java/com/google/devtools/build/lib/bazel/debug:dist_jars",
         "//src/main/java/com/google/devtools/build/lib/skylarkdebug/proto:dist_jars",
+        "//src/main/java/com/google/devtools/build/skydoc/rendering/proto:dist_jars",
         "@googleapis//:dist_jars",
         "@remoteapis//:dist_jars",
     ],