Update ICU to 58.1

source/data/coll/el.txt

Index: source/data/coll/el.txt
diff --git a/source/data/coll/el.txt b/source/data/coll/el.txt
index be47f42829930d8b0ef12c721f722a499d00df9f..3dc130ed704f6fa294c461ce8111460bcbbe9afb 100644
--- a/source/data/coll/el.txt
+++ b/source/data/coll/el.txt
@@ -1,11 +1,5 @@
-// ***************************************************************************
-// *
-// * Copyright (C) 2015 International Business Machines
-// * Corporation and others. All Rights Reserved.
-// * Tool: org.unicode.cldr.icu.NewLdml2IcuConverter
-// * Source File: <path>/common/collation/el.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 el{
     Version{"2.1.19.14"}
     collations{
@@ -14,7 +8,7 @@ el{
                 "[normalization on]"
                 "[reorder Grek]"
             }
-            Version{"28"}
+            Version{"30"}
         }
     }
 }