patch 8.2.1868: Vim9: no error for missing space after comma in dict

Problem:    Vim9: no error for missing space after comma in dict.
Solution:   Check for white space. (closes #6672)
diff --git a/src/version.c b/src/version.c
index 97a3b71..90ab88a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1868,
+/**/
     1867,
 /**/
     1866,