Fix name of prolog dependency

The name was changed from prolog_runtime to prolog-runtime in gerrit
core change I1e75690fe.

Change-Id: I8f3d7a580dbc82123e855862fbbbd7bdc26d869b
diff --git a/BUILD b/BUILD
index e4f359d..42ebd2b 100644
--- a/BUILD
+++ b/BUILD
@@ -5,7 +5,7 @@
 java_library(
     name = "find-owners-lib",
     srcs = glob(["src/main/java/**/*.java"]),
-    deps = PLUGIN_DEPS + ["@prolog_runtime//jar"],
+    deps = PLUGIN_DEPS + ["@prolog-runtime//jar"],
 )
 
 prolog_cafe_library(