patch 8.2.2908: crash when using a terminal popup window from cmdline window

Problem:    Crash when using a terminal popup window from the cmdline window.
Solution:   Instead of checking cmdwin_type call cmdwin_is_active().
            (closes #8286)
diff --git a/src/version.c b/src/version.c
index 36979c8..4b145f1 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2908,
+/**/
     2907,
 /**/
     2906,