requirements: Update to latest known working package versions

requirements.txt

@@ -1,22 +1,21 @@
-certifi==2019.6.16
+certifi==2019.11.28
 chardet==3.0.4
-colorama==0.4.1
-enum34==1.1.6; python_version<"3"
-devlib==1.1.2
-future==0.17.1
+colorama==0.4.3
+devlib==1.2.0
+future==0.18.2
 idna==2.8
 Louie-latest==1.3.1
 nose==1.3.7
-numpy==1.16.4
-pandas==0.24.2
+numpy==1.17.4
+pandas==0.25.3
 pexpect==4.7.0
 ptyprocess==0.6.0
 pyserial==3.4
-python-dateutil==2.8.0
-pytz==2019.1
-PyYAML==5.1.1
+python-dateutil==2.8.1
+pytz==2019.3
+PyYAML==5.2
 requests==2.22.0
-six==1.12.0
-urllib3==1.25.3
-wlauto==3.1.4
+six==1.13.0
+urllib3==1.25.7
+wlauto==3.2.0
 wrapt==1.11.2