patch 8.2.3115: Coverity complains about free_wininfo() use

Problem:    Coverity complains about free_wininfo() use.
Solution:   Add a condition that "wip2" is not equal to "wip". (Neovim #14996)
diff --git a/src/version.c b/src/version.c
index 7dfbe6d..e2f74e9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3115,
+/**/
     3114,
 /**/
     3113,