latexmk and perl conda conflict

[antoniojbt]

Install separate conda environment for building reports to avoid perl and latexmk conflict:

Install latex and requirements for report building:
bash -c 'conda install -y sphinxcontrib-bibtex' # for both pdf and html reports
bash -c 'conda install -y texlive-core latexmk perl-local-lib perl==5.20.3.1' # for pdf reports
latexmk and perl may conflict though (unsatisfiable error...)
latexmk is needed for make latexpdf but needs perl 5.20.3.1
perl-local-lib needs perl > 5.26.2
perl and perl local::lib are needed for latex and sphinx report building, perl without local::lib gives compilation errors and missing modules
This only affects latex and pdf building though, html reports are fine