Update Random_Compat from 1.1.6 to 1.2.1.

Changes: https://github.com/paragonie/random_compat/compare/1.1.6...v1.2.1

See #35665.

git-svn-id: https://develop.svn.wordpress.org/trunk@36886 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/random_compat/random_bytes_com_dotnet.php

@@ -46,14 +46,17 @@ function random_bytes($bytes)
             'random_bytes(): $bytes must be an integer'
         );
     }
+
     if ($bytes < 1) {
         throw new Error(
             'Length must be greater than 0'
         );
     }
+
     $buf = '';
     $util = new COM('CAPICOM.Utilities.1');
     $execCount = 0;
+
     /**
      * Let's not let it loop forever. If we run N times and fail to
      * get N bytes of random data, then CAPICOM has failed us.
@@ -68,6 +71,7 @@ function random_bytes($bytes)
         }
         ++$execCount; 
     } while ($execCount < $bytes);
+
     /**
      * If we reach here, PHP has failed us.
      */