Scheduled weekly dependency update for week 33 (#56)

* Update isort from 5.3.2 to 5.4.2

* Update sphinx from 3.2.0 to 3.2.1

Author: pyup-bot

doc/sphinx/requirements.txt

@@ -22,7 +22,7 @@ idna==2.10
 imagesize==1.2.0
 ipython-genutils==0.2.0
 ipython==7.17.0
-isort==5.3.2
+isort==5.4.2
 jedi==0.17.2
 jinja2==3.0.0a1
 lazy-object-proxy==1.5.1
@@ -52,7 +52,7 @@ scapy==2.4.3
 six==1.15.0
 snowballstemmer==2.0.0
 soupsieve==2.0.1
-sphinx==3.2.0
+sphinx==3.2.1
 sphinxcontrib-applehelp==1.0.2
 sphinxcontrib-devhelp==1.0.2
 sphinxcontrib-htmlhelp==1.0.3