Bind `org-force-cycle-archived' to C-c C-TAB

* lisp/org-keys.el (org-mode-map): Bind `org-force-cycle-archived'
to C-c C-TAB instead of C-TAB to avoid conflict with native Emacs
keybinding.

* doc/org-manual.org (Internal archiving): Update a keybinding.

doc/org-manual.org

@@ -7340,7 +7340,7 @@ The following commands help manage the =ARCHIVE= tag:
   child.  If point is /not/ on a headline when this command is
   invoked, check the level 1 trees.
 
-- {{{kbd(C-TAB)}}} (~org-force-cycle-archived~) ::
+- {{{kbd(C-c C-TAB)}}} (~org-force-cycle-archived~) ::
 
   #+kindex: C-TAB
   Cycle a tree even if it is tagged with =ARCHIVE=.

lisp/org-keys.el

@@ -445,7 +445,7 @@ COMMANDS is a list of alternating OLDDEF NEWDEF command names."
 ;;;; TAB key with modifiers
 (org-defkey org-mode-map (kbd "C-i") #'org-cycle)
 (org-defkey org-mode-map (kbd "<tab>") #'org-cycle)
-(org-defkey org-mode-map (kbd "C-<tab>") #'org-force-cycle-archived)
+(org-defkey org-mode-map (kbd "C-c C-<tab>") #'org-force-cycle-archived)
 ;; Override text-mode binding to expose `complete-symbol' for
 ;; pcomplete functionality.
 (org-defkey org-mode-map (kbd "M-<tab>") nil)