Update ICU to 58.1

source/data/coll/de_AT.txt

Index: source/data/coll/de_AT.txt
diff --git a/source/data/coll/de_AT.txt b/source/data/coll/de_AT.txt
old mode 100755
new mode 100644
index c6464016e366316c31ca3bb1f14a93641346593c..4b5f1212089c4f54d1db7a303047d6c9880e2c9b
--- a/source/data/coll/de_AT.txt
+++ b/source/data/coll/de_AT.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/de_AT.xml
-// *
-// ***************************************************************************
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html#License
 de_AT{
     Version{"2.1.19.14"}
     collations{
@@ -16,7 +10,7 @@ de_AT{
                 "&u<ü<<<Ü"
                 "&ss<ß<<<ẞ"
             }
-            Version{"28"}
+            Version{"30"}
         }
     }
 }