Suppress warning and enable to use dependency_tracking with -Werror (#1433)

fix: #1398

Author: tanishiking

third_party/dependency_analyzer/src/main/io/bazel/rulesscala/dependencyanalyzer/OptionsParser.scala

@@ -46,6 +46,6 @@ class OptionsParser private(
   }
 
   def takeStringSeqOpt(key: String): Option[Seq[String]] = {
-    takeStringOpt(key).map(_.split(":"))
+    takeStringOpt(key).map(_.split(":").toSeq)
   }
 }