fix(magit): gate code-review behind +forge
fix(magit): gate code-review behind +forge

code-review requires forge, therefore it shouldn't be available if
+forge isn't enabled on the :tools magit module.

Ref: 2d3a68df496f
Fix: #5935

hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d,hlissner/doom-emacs,hlissner/.emacs.d