patch 9.1.0311: filetype: Some config files are not recognized

patch 9.1.0311: filetype: Some config files are not recognized

Problem:  Some config files are not recognized
Solution: Add some patterns for chktex, ripgreprc and ctags config
          files.

See: https://www.nongnu.org/chktex/
See: https://github.com/BurntSushi/ripgrep/blob/master/GUIDE.md#configuration-file
See: https://docs.ctags.io/en/latest/option-file.html#order-of-loading-option-files

closes: #14506

Signed-off-by: Wu, Zhenyu <wuzhenyu@ustc.edu>
Signed-off-by: Christian Brabandt <cb@256bit.org>