Merge pull request #8757 from theotherjimmy/use-cpm

Update Cmsis-pack-manager to 0.2.3

Author: 0xc0170

requirements.txt

@@ -23,3 +23,4 @@ git+https://github.com/armmbed/[email protected]
 icetea>=1.2.1,<1.3
 pycryptodome>=3.7.2,<=3.7.3
 pyusb>=1.0.0,<2.0.0
+cmsis-pack-manager>=0.2.3,<0.3.0