fix(query): clickhouse endpoints env variable name typo (#78)

[washanhanzi]

Fix #78

This PR also change the QUERY_CLICKHOUSE_HTTP_HANDLER_PORT from 9000 to 8124. It is changed in #68, but the env variable name has a typo, it never take into effect.

I think this is just temporary fix. PR #77 use the user defined ports for the statefulSet, but the statefulSet template file has its own env variables defined.

Those two sets of ports can be easily unsynced as shown in #68.

This should be documented in values.yaml for now, else the user defined ports has no use.

I think those ports should be listed as separate and dedicate yaml values, and then used for env variables and statefulSet and service. User shouldn't define the port name, and it better not ranged in template.

[everpcpc]

thanks!