PIN: Cap scipy for python 3.7 (#216)

* PIN: Cap scipy for python 3.7

* MAINT: Bump minimum niworkflows

* Remove ancient pin

Author: mgxd

setup.cfg

@@ -24,9 +24,10 @@ install_requires =
     nibabel >= 3.0.1
     nipype >= 1.5.1
     nitime
-    niworkflows ~= 1.5.3
+    niworkflows ~= 1.5.4
     numpy >= 1.16.5
     pybids >= 0.12.1
+    scipy ~= 1.6.0; python_version<'3.8'
     sdcflows ~= 2.0.12
     smriprep ~= 0.8.1
     templateflow >= 0.6.0