patch 9.0.0732: no check for white space before and after "=<<"

Problem:    No check for white space before and after "=<<". (Doug Kearns)
Solution:   Check for white space in Vim9 script. (closes #11351)
diff --git a/src/version.c b/src/version.c
index b44101e..37d64fb 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    732,
+/**/
     731,
 /**/
     730,