vim-patch:9.0.0497: LyRiCs files are not recognized (#20239)

Problem:    LyRiCs files are not recognized.
Solution:   Add a pattern to detect LyRiCs files. (closes vim/vim#11155)
65ee49decf

runtime/lua/vim/filetype.lua

@@ -611,6 +611,7 @@ local extension = {
   nse = 'lua',
   rockspec = 'lua',
   lua = 'lua',
+  lrc = 'lyrics',
   m = function(path, bufnr)
     return require('vim.filetype.detect').m(bufnr)
   end,