emacs-libvterm release 0.0.2+git20260406.54c29d1-2 for unstable

[dgit distro=debian split --quilt=gbp]
[dgit please-upload source=emacs-libvterm version=0.0.2+git20260406.54c29d1-2 upstream-tag=upstream/0.0.2+git20260406.54c29d1 upstream=3defbcd2545338b118f098daa79e211c5d26e5c6]