patch 8.2.2380: Vim9: occasional crash when using try/catch and a timer

Problem:    Vim9: occasional crash when using try/catch and a timer.
Solution:   Save and restore "need_rethrow" when invoking a timer callback.
            (closes #7708)
diff --git a/src/version.c b/src/version.c
index 2e67f32..0e4a97b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2380,
+/**/
     2379,
 /**/
     2378,