patch 9.1.1004: tests: a few termdebug tests are flaky

Problem:  tests: a few termdebug tests are flaky; test_termdebug_basic()
          and test_termdebug_config_types() may fail if there is too
          much load
Solution: Set g:test_is_flaky

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index 0d2189b..6179cb3 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1004,
+/**/
     1003,
 /**/
     1002,