Log Message:
pkgtools/pkgchkxx: Update to 0.2.2

## 0.2.2 -- 2025-01-16

* Fix an issue where `pkgchkxx -u -q` scans and prints outdated packages
  twice, reported by @pfr-dev [#5]
* Fix an issue where `pkgchkxx -u` deletes outdated packages but then fails
  to install their newer versions. This was broken from the beginning of
  `pkgchkxx` and it's a good thing that nobody bothered to use this mode
  (as opposed to `pkgrrxx`).
* Fix a build failure on platforms where `posix_spawn(3)` is unavailable,
  and either `execvpe(3)` or `execve(2)` is also missing, reported by
  @schmonz [#7].
* Fix a potential issue where encountering an error condition could make
  programs die with SIGABRT instead of exitting gracefully.