chore: auto-generate vimdoc

Author: github-actions[bot]

doc/gp.nvim.txt

@@ -193,7 +193,7 @@ also supports subcommands for layout specification:
 
 - `:GpChatPaste vsplit` Paste into the latest chat in a vertical split window.
 - `:GpChatPaste split` Paste into the latest chat in a horizontal split window.
-- `:GpChatPaste tab` Paste into the latest chat in a new tab.
+- `:GpChatPaste tabnew` Paste into the latest chat in a new tab.
 - `:GpChatPaste popup` Paste into the latest chat in a popup window.
 
 
@@ -205,7 +205,7 @@ subcommands for layout specification:
 
 - `:GpChatToggle vsplit` Toggle chat in a vertical split window.
 - `:GpChatToggle split` Toggle chat in a horizontal split window.
-- `:GpChatToggle tab` Toggle chat in a new tab.
+- `:GpChatToggle tabnew` Toggle chat in a new tab.
 - `:GpChatToggle popup` Toggle chat in a popup window.