bind cider-quit C-c M-q at cider-sesman-browser-map

This keybind first introduced in the commit[1].  There are two
lines of key bindings to `C-c C-q`, probably due to a simple
mistake.

[1]: 6a9bc1c

cider-connection.el

@@ -631,7 +631,7 @@ REPL defaults to the current REPL."
     (define-key map (kbd "j d") #'cider-describe-connection)
     (define-key map (kbd "j i") #'cider-describe-connection)
     (define-key map (kbd "C-c C-q") #'cider-quit)
-    (define-key map (kbd "C-c C-q") #'cider-quit)
+    (define-key map (kbd "C-c M-q") #'cider-quit)
     (define-key map (kbd "C-c C-r") #'cider-restart)
     (define-key map (kbd "C-c M-r") #'cider-restart)
     (define-key map (kbd "C-c C-d") #'cider-describe-connection)