Update 3rd party software to latest versions

requirements.txt

@@ -1,16 +1,16 @@
 tox>=2.5, <3.0
 docopt>=0.6, <1.0
-psutil==5.6.7
+psutil==5.7.3
 pyinstaller>=3.2, <4.0
 kubernetes==10.0.0
 requests>=2.21, <3.0
-urllib3==1.25.9
+urllib3==1.26.2
 pytest<=3.3.2
 pytest-cov>=2.4.0, <2.6.1
-coverage<=4.5.4
+coverage<=5.3
 cryptography==3.2
 yamlreader==3.0.4
 pluggy>=0.5, <0.7
-packaging==17.1
+packaging==20.8
 attrs==18.1.0
-setuptools==41.0.1
+setuptools==51.0.0