patch 8.1.2329: mouse multiple click test is a bit flaky

Problem:    Mouse multiple click test is a bit flaky.
Solution:   Add it to the list of flaky tests.
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index e22557d..2b416b9 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -336,14 +336,15 @@
       \ 'Test_out_cb()',
       \ 'Test_pipe_through_sort_all()',
       \ 'Test_pipe_through_sort_some()',
+      \ 'Test_popup_and_window_resize()',
       \ 'Test_quoteplus()',
       \ 'Test_quotestar()',
       \ 'Test_raw_one_time_callback()',
       \ 'Test_reltime()',
-      \ 'Test_popup_and_window_resize()',
       \ 'Test_server_crash()',
       \ 'Test_state()',
       \ 'Test_term_mouse_double_click_to_create_tab()',
+      \ 'Test_term_mouse_multiple_clicks_to_visually_select()',
       \ 'Test_terminal_ansicolors_default()',
       \ 'Test_terminal_ansicolors_func()',
       \ 'Test_terminal_ansicolors_global()',
diff --git a/src/version.c b/src/version.c
index 2469ce9..76e3f1b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -738,6 +738,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2329,
+/**/
     2328,
 /**/
     2327,