patch 8.2.2843: Vim9: skip argument to searchpairpos() is not compiled

Problem:    Vim9: skip argument to searchpairpos() is not compiled.
Solution:   Handle like searchpair().  Also for search() and searchpos().
diff --git a/src/version.c b/src/version.c
index 12aace8..01c7792 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2843,
+/**/
     2842,
 /**/
     2841,