deps: update ICU to 68.1

Refs: https://github.com/unicode-org/icu/releases/tag/release-68-1

PR-URL: #36187
Reviewed-By: Richard Lau <rlau@redhat.com>
Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>

Author: targos

LICENSE

@@ -418,9 +418,9 @@ The externally maintained libraries used by Node.js are:
      #  Copyright (c) 2013 International Business Machines Corporation
      #  and others. All Rights Reserved.
      #
-     # Project: http://code.google.com/p/lao-dictionary/
-     # Dictionary: http://lao-dictionary.googlecode.com/git/Lao-Dictionary.txt
-     # License: http://lao-dictionary.googlecode.com/git/Lao-Dictionary-LICENSE.txt
+     # Project: https://github.com/veer66/lao-dictionary
+     # Dictionary: https://github.com/veer66/lao-dictionary/blob/master/Lao-Dictionary.txt
+     # License: https://github.com/veer66/lao-dictionary/blob/master/Lao-Dictionary-LICENSE.txt
      #              (copied below)
      #
      #  This file is derived from the above dictionary, with slight

deps/icu-small/LICENSE

@@ -284,9 +284,9 @@ property of their respective owners.
  #  Copyright (c) 2013 International Business Machines Corporation
  #  and others. All Rights Reserved.
  #
- # Project: http://code.google.com/p/lao-dictionary/
- # Dictionary: http://lao-dictionary.googlecode.com/git/Lao-Dictionary.txt
- # License: http://lao-dictionary.googlecode.com/git/Lao-Dictionary-LICENSE.txt
+ # Project: https://github.com/veer66/lao-dictionary
+ # Dictionary: https://github.com/veer66/lao-dictionary/blob/master/Lao-Dictionary.txt
+ # License: https://github.com/veer66/lao-dictionary/blob/master/Lao-Dictionary-LICENSE.txt
  #              (copied below)
  #
  #  This file is derived from the above dictionary, with slight