patch 8.2.4516: build failure without the +eval feature

Problem:    Build failure without the +eval feature.
Solution:   Move error message outside of #ifdef.

Author: brammool

src/errors.h

@@ -3246,6 +3246,6 @@ EXTERN char e_cannot_use_s_colon_in_vim9_script_str[]
 	INIT(= N_("E1268: Cannot use s: in Vim9 script: %s"));
 EXTERN char e_cannot_create_vim9_script_variable_in_function_str[]
 	INIT(= N_("E1269: Cannot create a Vim9 script variable in a function: %s"));
+#endif
 EXTERN char e_cannot_use_s_backslash_in_vim9_script[]
 	INIT(= N_("E1270: Cannot use :s\\/sub/ in Vim9 script"));
-#endif

src/version.c

@@ -754,6 +754,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    4516,
 /**/
     4515,
 /**/