[TESTS] Adds pytest-randomly to shuffle tests

Author: ferdia-sopermaccafraidh-lrn

setup.py

@@ -23,6 +23,7 @@
     'pytest >=4.6.6',
     'pytest-cov >=2.8.1',
     'pytest-subtests',
+    'pytest-randomly',
     'responses >=0.8.1',
     'types-requests',
     'types-Jinja2',