pin: update ``requirements.txt`` which was left inconsistent with ``setup.cfg`` [skip ci]
pin: update ``requirements.txt`` which was left inconsistent with ``setup.cfg`` [skip ci]

- [x] Remove pybids, as it will be required by templateflow when building the dockerfile
- [x] Pin templateflow 0.4.1
- [x] Pin pyntcloud to a release distributed via Pypi
poldracklab/niworkflows,oesteban/niworkflows,poldracklab/niworkflows,oesteban/niworkflows,oesteban/niworkflows