Point CI to Pint master

TomNicholas · web-flow · commit d4caead1ed32 · 2020-04-10T17:01:25.000+01:00
diff --git a/requirements.txt b/requirements.txt
@@ -1,3 +1,3 @@
 numpy==1.17.1
 xarray==0.15.1
-pint==0.12
+pint==git+git://github.com/hgrecco/pint@master#egg=pint
