[debug] syntax highlight SQL and RQL debug output This prevent DBG_RQL and DBG_SQL output to looks like a gigantic blob of white text. Do this only if we detect that we are in a tty and that pygments is installed. Closes #17222885

version=3
opts=uversionmangle=s/(rc|a|b|c)/~$1/ \
https://pypi.debian.net/cubicweb/cubicweb-(.+)\.(?:zip|tgz|tbz|txz|(?:tar\.(?:gz|bz2|xz)))