Harmonize build rule names to use hyphen instead of underscore

Change-Id: I31a4435d3f26edb6e9adbecdd88d8a9cedca8c0b

lib/soy/BUILD

diff --git a/lib/soy/BUILD b/lib/soy/BUILD
index 34835b3..5666b8c 100644
--- a/lib/soy/BUILD
+++ b/lib/soy/BUILD
@@ -8,7 +8,7 @@
         "@soy//jar",
     ],
     runtime_deps = [
-        "@html_types//jar",
+        "@html-types//jar",
         "@icu4j//jar",
         "@protobuf//jar",
     ],