Bump required boutdata to 0.1.4

Required to evaluate expressions at staggered positions for unit tests
of integration of staggered quantities.

Author: johnomotani

setup.cfg

@@ -28,7 +28,7 @@ setup_requires =
     setuptools_scm_git_archive
 install_requires =
     xarray>=0.17.0
-    boutdata>=0.1.2
+    boutdata>=0.1.4
     dask[array]>=2.10.0
     natsort>=5.5.0
     matplotlib>=3.1.1,!=3.3.0,!=3.3.1,!=3.3.2