Failed to provision secrets to vault...!!
Request for earlier help.
The issue seems like you are having a different version of PyYAML from the requirement. It should use PyYAML version PyYAML-5.1.1. You can uninstall the existing version manually and install the PyYAML version-5.1.1 as per below command
pip3 install PyYAML==5.1.1
After doing the above installation, you can re-run again the ./edgesoftware install command.