patch 8.2.3140: MS-Windows: ipv6 channel test is very flaky also without GUI

Problem:    MS-Windows: ipv6 channel test is very flaky also without the GUI.
Solution:   Skip the test also without the GUI.

Author: brammool

src/testdir/test_channel.vim

@@ -253,9 +253,9 @@ endfunc
 func Test_communicate_ipv6()
   CheckIPv6
 
-  " FIXME: this test is very flaky on MS-Windows with the GUI
-  if has('gui_running') && has('win32')
-    throw 'Skipped: test is very flaky with MS-Windows in GUI'
+  " FIXME: this test is very flaky on MS-Windows
+  if has('win32')
+    throw 'Skipped: test is very flaky with MS-Windows'
   endif
 
   call Test_communicate()

src/version.c

@@ -755,6 +755,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    3140,
 /**/
     3139,
 /**/