patch 9.0.1844: doc helptags may not be up to date

Problem:  doc helptags may not be up to date
Solution: Add CI jobs to verify helptags are updated

Also, re-generate the tags file with updated list so it will pass CI.

closes: #13012

Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index ae28864..81bee38 100644
--- a/src/version.c
+++ b/src/version.c
@@ -700,6 +700,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1844,
+/**/
     1843,
 /**/
     1842,