.dir-locals.el: Disable compilation of .dir-locals.el

* .dir-locals.el: Add `no-byte-compile'.

Reported-by: Lin Jian <me@linj.tech>
Link: https://list.orgmode.org/orgmode/87zfocwjwx.fsf@linj.tech/

TINYCHANGE

.dir-locals.el

@@ -1,4 +1,4 @@
-;;; Directory Local Variables
+;;; Directory Local Variables            -*- no-byte-compile: t; -*-
 ;;; For more information see (info "(emacs) Directory Variables")
 
 ((nil