set patronictl config file

[jleni]

What this PR does / why we need it

Points patronictl to the correct config file. This means that people can run the CLI without using -c /etc/timescaledb/patroni.yaml

Which issue this PR fixes

Minimizes the risk of mistakes such as

179

347

365

418

Checklist

• [x] Chart Version bumped
• [x] CLA signed

[jleni]

Yes, I just noticed! sorry about that. Rebased and updated

[jleni]

sorry the rebase removed a line. Fixing that now