patch 8.2.1264: terminal getwinpos() test is a bit flaky

Problem:    Terminal getwinpos() test is a bit flaky.
Solution:   Call getwinpos() a bit later.
diff --git a/src/version.c b/src/version.c
index a269082..9b6f1b4 100644
--- a/src/version.c
+++ b/src/version.c
@@ -755,6 +755,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1264,
+/**/
     1263,
 /**/
     1262,