maint(deps): update niworkflows dependency

Author: oesteban

docs/requirements.txt

@@ -2,7 +2,7 @@ git+https://github.com/AleksandarPetrov/napoleon.git@0dc3f28a309ad602be5f44a9049
 git+https://github.com/rwblair/sphinxcontrib-versioning.git@39b40b0b84bf872fc398feff05344051bbce0f63#egg=sphinxcontrib-versioning
 nbsphinx
 nipype ~= 1.5.1
-git+https://github.com/oesteban/niworkflows.git@cc328fee37266985ed3f9f7ca42f3e3f1ac26487#egg=niworkflows
+niworkflows >=1.4.0rc0,<1.5
 packaging
 pydot>=1.2.3
 pydotplus

setup.cfg

@@ -25,7 +25,7 @@ install_requires =
     indexed_gzip >=0.8.8
     nibabel ~= 3.0
     nipype ~= 1.5.1
-    niworkflows @ git+https://github.com/oesteban/niworkflows.git@cc328fee37266985ed3f9f7ca42f3e3f1ac26487
+    niworkflows >= 1.4.0rc0, <1.5
     numpy
     pybids >= 0.11.1
     pyyaml