chore(3p/sources): Bump channels & overlays

* //ops/modules/depot-inbox: Adapt to upstream option type declaration.
  See nixpkgs commit b6ed3b8f402893df91a8e21ce993520301c2f076.

* //ops/machines/sanduny, //users/tazjin/polyanka:
  Remove boot.loader.grub.version options (no longer has any effect).

* //users/sterni/emacs: reflect rename emacsPgtk -> emacs-pgtk

* //3p/overlays: update tdlib to match emacs-overlay

* //3p/overlays: give EXWM from depot a separate name

* //users/grfn/system/home: disable Slack support in ntfy

Change-Id: I03bde088bc70e05b23925f244899807210cb7b20
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8547
Autosubmit: sterni <sternenseemann@systemli.org>
Reviewed-by: sterni <sternenseemann@systemli.org>
Reviewed-by: grfn <grfn@gws.fyi>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>

users/sterni/emacs/default.nix

@@ -15,7 +15,7 @@ let
   '';
 
   # emacsPgtk is defined in emacs-overlay
-  emacs = (pkgs.emacsPackagesFor pkgs.emacsPgtk).withPackages (epkgs: [
+  emacs = (pkgs.emacsPackagesFor pkgs.emacs-pgtk).withPackages (epkgs: [
     epkgs.bqn-mode
     #epkgs.elpaPackages.ada-mode
     epkgs.elpaPackages.rainbow-mode