patch 9.1.0245: filetype: zsh theme, history and zunit files are not recognized

Problem:  filetype: zsh theme, history and zunit files are not
          recognized.
Solution: Detect '.zsh_history', '*.zsh-theme' and '*.zunit' as zsh
          (Wu, Zhenyu)

closes: #14366

Signed-off-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index a6755ac..4908129 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    245,
+/**/
     244,
 /**/
     243,