Merge branch 'rel/3.6.4' into 'v3.6'

Rel/3.6.4

See merge request fsl/fslpy!308
3 jobs for 3.6.4 in 1 minute and 28 seconds (queued for 3 seconds)
latest
Status Name Job ID Coverage
  Build
passed build-pypi-dist #47866
docker

00:00:57

 
  Deploy
passed deploy-pypi #47867
docker manual

00:00:30

manual deploy-zenodo #47868
docker allowed to fail manual