fix: update recipe for CI

For some reason, this can't be found in CI? Easy enough to expand the recipe

Author: elken

config.org

@@ -2418,7 +2418,9 @@ This is literally the coolest package ever...
 A simple package to add file icons in magit views.
 
 #+begin_src elisp
-(package! magit-file-icons :pin "0006e243b0e7aa005f6e8900b4b2e3a92c2d0532")
+(package! magit-file-icons
+  :pin "0006e243b0e7aa005f6e8900b4b2e3a92c2d0532"
+  :recipe (:host github :repo "gekoke/magit-file-icons"))
 #+end_src
 
 #+begin_src emacs-lisp