the_silver_searcher: Update to 2.2.0

Changes:
2.2.0
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- Add support for Idris, APL and J
- Add .r to R file extensions
- Add file extensions for TLA+, Isabelle, Coq
- Add support for D
- Add support for PDB
- Add support for thrift
- Add filter for devicetree source files
- Document -W/--width option in the man page
- Add support for pug
- Add support for terraform files
- Misc bug fixes and improvements

(leot)