chore(build): auto-generate vimdoc

Author: astronvimbot

doc/api.md

@@ -841,7 +841,7 @@ function astrocore.rooter.realpath(path?: string)
 
 
 ```lua
-function astrocore.rooter.resolve(spec: string|fun(bufnr: integer):string|string[]|string[], config?: AstroCoreRooterOpts)
+function astrocore.rooter.resolve(spec: string|fun(bufnr: integer):string|string[]|nil|string[], config?: AstroCoreRooterOpts)
   -> function
 ```
 

doc/astrocore.txt

@@ -1,4 +1,4 @@
-*astrocore.txt*         For Neovim >= 0.9.0         Last change: 2025 April 23
+*astrocore.txt*         For Neovim >= 0.9.0         Last change: 2025 April 28
 
 ==============================================================================
 Table of Contents                                *astrocore-table-of-contents*
@@ -1122,7 +1122,7 @@ _return_ `the` — resolved path
 RESOLVE ~
 
 >lua
-    function astrocore.rooter.resolve(spec: string|fun(bufnr: integer):string|string[]|string[], config?: AstroCoreRooterOpts)
+    function astrocore.rooter.resolve(spec: string|fun(bufnr: integer):string|string[]|nil|string[], config?: AstroCoreRooterOpts)
       -> function
 <