bug#57581: Failing to build the website

[pelzflorian (Florian Pelz)]

zimoun <zimon.toutoune@gmail.com> writes:
> The culprit seems the package ’qtserialport’ in ’packages-builder’ from
> (apps packages builder).  Maybe introduced by commit
> 1ef04fb2288dade3ad2883026ae286a68ef13a1e.

This was a first failing commit for me too, but the reason the website
does not build appears to be the license field of qtshadertools in
commit 1d65ff8fdeb20cc2db956093f0ecb1f3f72afc0e (Cc to Maxim).  I could
make a patch but not today.  Maxim, would you fix it?

I don’t know if there is a way to catch such mistakes early.  Field
sanitizers?

Regards,
Florian