fix(dependency): match niworkflows pinned version to that of smriprep-0.6.0rc2

Resolves: #98

Author: oesteban

setup.cfg

@@ -24,7 +24,7 @@ install_requires =
     indexed_gzip >=0.8.8
     nibabel ~= 3.0
     nipype ~= 1.4
-    niworkflows >=1.1.10,<1.4
+    niworkflows >=1.2.0rc1,<1.3
     numpy
     pybids >=0.9.4
     pyyaml