Log Message:
textproc/xt-rs: update to 0.19.1

v0.19.1 (2024-07-25)
Fixed
 - Potential quadratic behavior in YAML handling. This version of xt upgrades to
   the latest version of the third-party unsafe-libyaml library, which plays a
   critical role in xt's YAML support. The upgrade fixes performance issues on
   YAML documents with unusually deep collection nesting.

Changed
 - This version of xt cleans up some unused code and development dependencies,
   and upgrades some other locked dependencies. These changes are not expected
   to significantly affect functionality, performance, or security.