docs(licence): update licence dates

3 jobs for branch/default in 1 minute and 20 seconds (queued for 39 seconds)
Status Name Job ID Coverage
  Lint
passed check-manifest #494723
lint check-manifest

00:01:05

passed flake8 #494722
lint flake8

00:00:48

 
  Tests
passed py3 #494724
tests py3

00:01:08