docs(licence): update licence dates

2 jobs for !18 with topic/default/update-licence-dates in 1 minute and 32 seconds (queued for 5 seconds)
latest detached
Status Name Job ID Coverage
  Tests
failed py27 #494662
py2 tests

00:01:32

failed py27 #493325
tests py2

00:00:29

 
Name Stage Failure
failed
py27 Tests
WARNING: You are using pip version 20.0.2; however, version 20.3.4 is available.
You should consider upgrading via the '/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install --upgrade pip' command.

=================================== log end ====================================
ERROR: could not install deps [-rrequirements-test.txt]; v = InvocationError(u'/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install -rrequirements-test.txt', 1)
___________________________________ summary ____________________________________
ERROR: py27: could not install deps [-rrequirements-test.txt]; v = InvocationError(u'/builds/cubicweb/cubes/email/.tox/py27/bin/python -m pip install -rrequirements-test.txt', 1)
Cleaning up file based variables
ERROR: Job failed: command terminated with exit code 1