Update Cassandra queries for tables

[bowenxia]

What changed?
Update Cassandra queries for tables:

Table_Name	created_time	last_updated_time
executions	In previous PR	In previous PR
history_node	Done	no need
history_tree	Done	no need
tasks	Done	Done
domains	Done	no
domains_by_name_v2	Done	Yes (But it is type bigint)
queue	Done	no
queue_metadata	Done	Done
cluster_config	No	Has timestamp

Note: Cluster_config table has a col called timestamp. And it only has INSERT operation called by a update_cluster_config function. I assume it uses insert as both create and update: this means created_time can’t be added.

Why?
Can debug more conveniently

How did you test it?
Unit test
Manually tested in mono repo:
history_node

historytree

tasks

domains

domains_by_name_v2

queue

queue_metadata

Empty since this one doesn't insert/update too often

Potential risks

Release notes

Documentation Changes