Merge pull request nlohmann#13 from nlohmann/dependabot/pip/psutil-5.6.6

⬆️ Bump psutil from 5.3.1 to 5.6.6

Author: nlohmann

requirements.txt

@@ -12,7 +12,7 @@ Jinja2==2.9.6
 MarkupSafe==1.1.0
 packaging==16.8
 pbr==3.1.1
-psutil==5.3.1
+psutil==5.6.6
 pyparsing==2.2.0
 python-utils==2.2.0
 six==1.11.0