vim-patch:fc6d0d4: runtime(beancount): Add support for non-ASCII account names

closes: vim/vim#20597

https://github.com/vim/vim/commit/fc6d0d418d7508a0c9ec55306b937ba18d2cca25

Co-authored-by: 依云 <lilydjwg@gmail.com>

runtime/syntax/beancount.vim

@@ -2,6 +2,7 @@
 " Language: beancount
 " Maintainer: Nathan Grigg
 " Latest Revision: 2024-11-25
+" 2026 Jun 22 by Vim Project: allow non-ASCII account names
 
 if exists("b:current_syntax")
     finish
@@ -16,7 +17,7 @@ syn match beanAmount "\v[-+]?[[:digit:].,]+" nextgroup=beanCurrency contained
             \ skipwhite
 syn match beanCurrency "\v\w+" contained
 " Account name: alphanumeric with at least one colon.
-syn match beanAccount "\v[[:alnum:]]+:[-[:alnum:]:]+" contained
+syn match beanAccount "\v[[:alnum:]]+:\S+" contained
 syn match beanTag "\v#[-[:alnum:]]+" contained
 syn match beanLink "\v\^\S+" contained
 " We must require a space after the flag because you can have flags per