test: skip flaky test on Windows

test/functional/terminal/buffer_spec.lua

@@ -281,6 +281,7 @@ describe(':terminal buffer', function()
   end)
 
   it('requires bang (!) to close a running job #15402', function()
+    skip(is_os('win'), "Test freezes the CI and makes it time out")
     eq('Vim(wqall):E948: Job still running', exc_exec('wqall'))
     for _, cmd in ipairs({ 'bdelete', '%bdelete', 'bwipeout', 'bunload' }) do
       matches('^Vim%('..cmd:gsub('%%', '')..'%):E89: term://.*tty%-test.* will be killed %(add %! to override%)$',