patch 8.2.0310: autocmd test fails on a slow system

Problem:    Autocmd test fails on a slow system.
Solution:   Adjust the expectations. (James McCoy, closes #5685)
diff --git a/src/version.c b/src/version.c
index b8e47fc..61ee30c 100644
--- a/src/version.c
+++ b/src/version.c
@@ -739,6 +739,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    310,
+/**/
     309,
 /**/
     308,