devtools 20230105-1 enables the debug option by default.

A follow-up commit will remove debug from alongside other options.

Cf. https://gitlab.archlinux.org/archlinux/rfcs/-/blob/master/rfcs/0011-store-source-signing-keys.rst

- Upstream switched the build system from Autotools to Meson.
- Build from signed Git commit, PGP key is the same as for Clevis and Tang.