increase time for cobalt

hmftools.wdl

@@ -114,7 +114,7 @@ task Cobalt {
         Int threads = 1
         String memory = "5G"
         String javaXmx = "4G"
-        Int timeMinutes = 240
+        Int timeMinutes = 480
         String dockerImage = "quay.io/biocontainers/hmftools-cobalt:1.11--0"
     }