Makes the required version more obvious (tgstation#51055)

About The Pull Request

The num_to_hex pr tgstation#51005 updated the required version without updating the error message sweep sweep sweep
Why It's Good For The Game

This looks like a bug at first glance, let's fix that.
Changelog

🆑
fix: Dear out of date coders, you will now be yelled at to update to the correct version of byond, rather then an unsupported one.
/🆑

code/_compile_options.dm

@@ -37,7 +37,7 @@
 #if DM_VERSION < MIN_COMPILER_VERSION || DM_BUILD < MIN_COMPILER_BUILD
 //Don't forget to update this part
 #error Your version of BYOND is too out-of-date to compile this project. Go to https://secure.byond.com/download and update.
-#error You need version 513.1508 or higher
+#error You need version 513.1514 or higher
 #endif
 
 //Additional code for the above flags.