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