vim-patch:9.0.1406: ILE RPG files are not recognized

Problem:    ILE RPG files are not recognized.
Solution:   Add patterns for ILE RPG files. (Andreas Louv, issue vim/vim#12152)

e202ec8a0c

Co-authored-by: Andreas Louv <andreas@louv.dk>

runtime/lua/vim/filetype.lua

@@ -883,6 +883,8 @@ local extension = {
   ron = 'ron',
   rsc = 'routeros',
   x = 'rpcgen',
+  rpgle = 'rpgle',
+  rpgleinc = 'rpgle',
   rpl = 'rpl',
   Srst = 'rrst',
   srst = 'rrst',