patch 8.2.0752: terminal in popup window test is a bit flaky

Problem:    Terminal in popup window test is a bit flaky.
Solution:   Wait for shell job status to be "run".  Mark as flaky test.
diff --git a/src/testdir/test_popupwin.vim b/src/testdir/test_popupwin.vim
index a664346..feaa5e4 100644
--- a/src/testdir/test_popupwin.vim
+++ b/src/testdir/test_popupwin.vim
@@ -2422,12 +2422,15 @@
 func Test_popupwin_terminal_buffer()
   CheckFeature terminal
   CheckUnix
+  " Starting a terminal to run a shell in is considered flaky.
+  let g:test_is_flaky = 1
 
   let origwin = win_getid()
   let ptybuf = term_start(&shell, #{hidden: 1})
   let winid = popup_create(ptybuf, #{minwidth: 40, minheight: 10})
   " Wait for shell to start
-  sleep 200m
+  call WaitForAssert({-> assert_equal("run", job_status(term_getjob(ptybuf)))})
+  sleep 100m
   " Check this doesn't crash
   call assert_equal(winnr(), winnr('j'))
   call assert_equal(winnr(), winnr('k'))
diff --git a/src/version.c b/src/version.c
index 0d0af78..3f67db4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -747,6 +747,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    752,
+/**/
     751,
 /**/
     750,