textproc/hgrep: update to 0.3.0

v0.3.0 - 21 Jan 2023
- Update syntect dependency to v5.0.0. Thanks to lazy loading, this change
  makes loading assets at startup about 70% faster. The small benchmark showed
  hgrep command was 1.7x faster when searching a small file with -p syntect
  compared to v0.2.8.
- Update bat dependency from 0.20 to 0.22. This introduces several improvements
  and fixes which were recently added to bat when using -p bat.
- Add --generate-man-page flag to generate a manual page file. Save the output
  to your man directory to show the help with man command. If you install
  hgrep with Homebrew, it will be automatically generated.
- Add several syntax highlighting for configuration files (Git configs, Fish
  history, SSH config, Nginx config, ...).
- Wrapp the --help output looking at the terminal width. The output is more
  compact than v0.2.8.
- Improve error handling when failing to enable ANSI color sequences support
  on Windows.

v0.2.8 - 10 Jan 2023
- Fix some command line boolean flags wrongly took an argument.
  (thanks @Ryooooooga, #15)

v0.2.7 - 04 Jan 2023
- Fix crash when reading from rg --vimgrep. Note that --vimgrep flag is not
  assumed by hgrep. Please use rg -nH. (#13)
- Fix errors are not reported when they are caused by the second match or
  later.
- Update dependencies to the latest. Especially migrating to clap v4 improved
  the --help output.
- Migrate to Rust 2021 edition.

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