Update test and dev requirements

[gsheni]

• Upgraded all pypi packages in dev, test, and setup requirements.
• flake8, and pympler do not have their latest version on conda, so only upgraded to the latest on conda.
• lint fixes
• pytest threw an error that fixtures cannot be called directly, so this was fixed.

[codecov]

Codecov Report

Merging #386 into master will increase coverage by <.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master     #386      +/-   ##
==========================================
+ Coverage   95.77%   95.77%   +<.01%     
==========================================
  Files          90       90              
  Lines        7857     7867      +10     
==========================================
+ Hits         7525     7535      +10     
  Misses        332      332

Impacted Files	Coverage Δ
featuretools/utils/gen_utils.py	88.09% <ø> (ø)	⬆️
featuretools/computational_backends/utils.py	94.9% <100%> (ø)	⬆️
featuretools/tests/testing_utils/mock_ds.py	87.5% <100%> (ø)	⬆️
...s/tests/primitive_tests/test_install_primitives.py	100% <100%> (ø)	⬆️
featuretools/entityset/entity.py	95.65% <100%> (ø)	⬆️

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[rwedge]

install_via_cli

Same thing inside the parameterize list

[gsheni]

Fixed.

[rwedge]

looks good