patch 8.1.1860: map timeout test is flaky
Problem: Map timeout test is flaky.
Solution: Add test to list of flaky tests. Increase timeout.
diff --git a/src/testdir/runtest.vim b/src/testdir/runtest.vim
index 32c22fa..1df7fd9 100644
--- a/src/testdir/runtest.vim
+++ b/src/testdir/runtest.vim
@@ -322,6 +322,7 @@
\ 'Test_diff_screen()',
\ 'Test_exit_callback()',
\ 'Test_exit_callback_interval()',
+ \ 'Test_map_timeout_with_timer_interrupt()',
\ 'Test_nb_basic()',
\ 'Test_open_delay()',
\ 'Test_out_cb()',