Updating dependencies (#398)

* clean  up envt

* updating deps

* trying something

* undoing change I made to the environment

Co-authored-by: Leah Wasser <leah.wasser@colorado.edu>

Author: nkorinek

dev-requirements.txt

@@ -1,14 +1,14 @@
 bumpversion==0.6.0
-sphinx_rtd_theme==0.5.0
-sphinx_gallery==0.8.0
+sphinx_rtd_theme==0.5.1
+sphinx_gallery==0.8.2
 sphinx-autobuild==2020.9.1
 pytest-vcr==1.0.2
-pytest-cov==2.10.1
-codecov==2.1.9
-pytest==6.0.1
-setuptools==50.1.0
-pre-commit==2.7.1
-pip==20.2.2
+pytest-cov==2.11.1
+codecov==2.1.11
+pytest==6.2.2
+setuptools==53.0.0
+pre-commit==2.10.0
+pip==21.0.1
 descartes==1.1.0
 seaborn>=0.9.1
-pillow==7.2.0
+pillow==8.1.0