patch 8.2.2238: Vim9: cannot load a Vim9 script without the +eval feature

Problem:    Vim9: cannot load a Vim9 script without the +eval feature.
Solution:   Support Vim9 script syntax without the +eval feature.
diff --git a/src/proto.h b/src/proto.h
index 5923d23..686a3d6 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -233,10 +233,10 @@
 # include "usercmd.pro"
 # include "userfunc.pro"
 # include "version.pro"
+# include "vim9script.pro"
 # ifdef FEAT_EVAL
 #  include "vim9compile.pro"
 #  include "vim9execute.pro"
-#  include "vim9script.pro"
 #  include "vim9type.pro"
 # endif
 # include "window.pro"