Set GDB version number to 14.1.

This commit changes gdb/version.in to 14.1.

gdb/version.in

diff --git a/gdb/version.in b/gdb/version.in
index f822f14..9dc0691 100644
--- a/gdb/version.in
+++ b/gdb/version.in
@@ -1 +1 @@
-14.0.91.DATE-git
+14.1