fix(dep): Update psycopg2 dependency to psycopg2-binary to avoid compiling sources

3 jobs for topic/default/psycopg2-binary in 1 minute and 5 seconds (queued for 6 seconds)
Name Stage Failure
py27 Test
    from urllib.parse import urlparse
E ImportError: No module named parse
!!!!!!!!!!!!!!!!!!! Interrupted: 5 errors during collection !!!!!!!!!!!!!!!!!!!!
====================== 1 skipped, 5 error in 1.42 seconds ======================
ERROR: InvocationError for command '/builds/cubicweb/cubes/datacat/.tox/py27/bin/python -m pytest' (exited with code 2)
___________________________________ summary ____________________________________
ERROR: py27: commands failed
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1