Fix CI to run with MkDocs 1.0.4

2 jobs for MikeyMJCO-master-patch-90066 in 7 minutes and 54 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #531
test:php7.3

00:07:54

64.43%
passed #532
test:php7.4

00:07:47

64.43%