ANNOUNCE: xfce4-dev-tools 4.21.2 released

[Gaël Bonithon]

xfce4-dev-tools 4.21.2 is now available for download from
  
  https://archive.xfce.org/src/xfce/xfce4-dev-tools/4.21/xfce4-dev-tools-4.21.2.tar.bz2
  https://archive.xfce.org/src/xfce/xfce4-dev-tools/4.21/xfce4-dev-tools-4.21.2.tar.bz2?sha1
  https://archive.xfce.org/src/xfce/xfce4-dev-tools/4.21/xfce4-dev-tools-4.21.2.tar.bz2?sha256


What is xfce4-dev-tools?
========================

The Xfce Development Tools are a set of scripts and m4/autoconf macros
that ease build system maintenance.

Website: 
  https://docs.xfce.org/xfce/xfce4-dev-tools/start


Release notes for 4.21.2
========================
[Please note that this is a development release.]

- Add cargo support to xfce-do-release
- ci: Show only useful logs in case of cppcheck job failure
- ci: Add --force to cppcheck command line
- ci: Add --suppress=unmatchedSuppression to cppcheck command line
- ci: Remove parts of xfce.cfg depending on cppcheck guessed version
- ci: add systemd-dev to build container
- ci: Add glib/gtk version check to cppcheck config file
- ci: Add `-I .` to cppcheck command line
- ci: install rust toolchain/binaries to system location
- ci: run `cargo deny check advisories` for rust projects that use it
- ci: add dry-run publish step for cargo projects
- Update rust to 1.90.0
- ci: add build step for cargo-only projects
- ci: only run one meson build for rust projects
- ci: add analysis for rust
- ci: Loosen exclusion regex for gcc-analyzer a bit
- ci: Add missing macro to cppcheck config file