Add additional config params for patroni

[eberlep]

apiVersion: "acid.zalan.do/v1"
kind: postgresql
spec:
  patroni:
    ttl: "{{patroni.ttl | default (30)}}"
    loop_wait: &loop_wait "{{patroni.loop_wait | default (10)}}"
    retry_timeout: "{{patroni.retry_timeout | default (10)}}"

[eberlep]

ttl: 130
loop_wait: 10
retry_timeout: 60