patch 8.2.0043: timers test is still flaky on Travis for Mac

Problem:    Timers test is still flaky on Travis for Mac.
Solution:   Increase maximum expected time.

src/testdir/test_timers.vim

@@ -20,8 +20,8 @@ func Test_timer_oneshot()
   let slept = WaitFor('g:val == 1')
   call assert_equal(1, g:val)
   if has('mac')
-    " Mac on Travis can be slow.
-    let limit = 160
+    " Mac on Travis can be very slow.
+    let limit = 180
   else
     let limit = 100
   endif

src/version.c

@@ -742,6 +742,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    43,
 /**/
     42,
 /**/