* [doc] update requirements for consul_kv module
python-consul has been unmaintained for a while. It uses a legacy way of passing the Consul token when sending requests. This leads to warning messages in Consul log, and will eventually break communication. Using the maintained py-consul library ensures compatibility to newer Consul versions.
* [doc] replace all python-consul occurrences with py-consul
* [fix] tests and possible pip server errors
* [chore] remove referencce to python-consul in comment
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Co-authored-by: Sebastian Damm <sebastian.damm@pascom.net>
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