Log Message:
textproc/hgrep: update to 0.3.3

 - Always enable 24-bit colors on Windows because 24-bit colors support is
   available since Windows 10.0.15063 (released on April 5, 2019).
 - Add the document which explains how hgrep detects terminal color support.
 - Support generating a completion script for Nushell by
   --generate-completion-script nushell.
 - Set codegen-units to 1 on release build. This made the binary size 1.14x
   smaller and improved the performance by 1.05x faster.
 - Update dependencies to the latest versions including large update of regex
   crate (v1.9.1).
 - Do not depend on terminfo crate on Windows.