Update Soy to 2018-03-14

Update imports that moved from restricted to internal

PiperOrigin-RevId: 184345249
Change-Id: I313ade4df0f8a73de2310112478389f0df1031a1

WORKSPACE

diff --git a/WORKSPACE b/WORKSPACE
index e12f2ab..08397fd 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -104,8 +104,8 @@
 
 maven_jar(
     name = "soy",
-    artifact = "com.google.template:soy:2018-01-03",
-    sha1 = "62089a55675f338bdfb41fba1b29fe610f654b4d",
+    artifact = "com.google.template:soy:2018-03-14",
+    sha1 = "76a1322705ba5a6d6329ee26e7387417725ce4b3",
 )
 
 maven_jar(