Farewell to Bram and dedicate upcoming Vim 9.1 to him (#12749)

* Dedicate upcoming Vim 9.1 to Bram

Also replace in a few more places Brams email address and mention new
maintainers.

* Remove Bram from any Maintainer role

* runtime: Align Header

* it's mailing list not mailinglist
diff --git a/runtime/syntax/synload.vim b/runtime/syntax/synload.vim
index 70e2d88..553e8b2 100644
--- a/runtime/syntax/synload.vim
+++ b/runtime/syntax/synload.vim
@@ -1,6 +1,7 @@
 " Vim syntax support file
-" Maintainer:	Bram Moolenaar <Bram@vim.org>
-" Last Change:	2022 Apr 12
+" Maintainer:	The Vim Project <https://github.com/vim/vim>
+" Last Change:	2023 Aug 10
+" Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " This file sets up for syntax highlighting.
 " It is loaded from "syntax.vim" and "manual.vim".