TeX missing?

I’m a bit confused here. According to this pipeline that was run on a branch
<https://gitlab.common-lisp.net/cmucl/cmucl.common-lisp.dev/-/jobs/82062>,
TeX is installed because I could build the cmucl docs which uses TeX to
generate the pdf version.

However, the pipeline on the master branch
<https://gitlab.common-lisp.net/cmucl/cmucl.common-lisp.dev/-/jobs/82068>
says TeX isn’t installed.

And indeed when I ssh to gitlab.common-lisp.net, I can’t find latex,
texi2dvi or any of the usual TeX binaries anywhere.

Could I have TeX installed, please, if it’s not actually installed
somewhere?
-- 
Ray