Rust Xen Guest Agent 0.4.0

[Yann Dirson <yann.dirson@xxxxxxxxxx>]

A new pre-release of our guest agent prototype written in Rust is
available, numbered 0.3.0 [1].  Identified issues and work to be done
are tracked in Gitlab issue tracker [2].

As always, feedback will be greatly appreciated!

Highlights:

### new features

* can be linked statically with libxenstore to distribute a more
   standalone binary (`-F static`).  Used for official Linux binary.
   Notably useful for guests running a RHEL-derived Linux distro.

### bugfixes

* stale network information in xenstore is now removed on startup

### other noteworthy changes

* CI pipelines stopped producing binaries for EOL'd FreeBSD 12.4,
   switched to 13.2
* CI now produces an (unofficial) binary for FreeBSD with Netlink
   support


[1] https://gitlab.com/xen-project/xen-guest-agent/-/releases/0.4.0
[2] https://gitlab.com/xen-project/xen-guest-agent/-/issues


Yann Dirson | Vates Platform Developer

XCP-ng & Xen Orchestra - Vates solutions

web: https://vates.tech