Use table name when generating SQL to filter jobs on ... Container Analysis Tasks screens

[yrudman]

This PR is preparation for ManageIQ/manageiq#14030

There is Owner column on Jobs screens and right now it takes value from jobs.agent_name which get populated from miq_servers.name.
After linking Job and MiqServer (PR ManageIQ/manageiq#14030) not used jobs.agent_name column will be removed and "Owner" column would get data directly from miq_server.name.
SQL for filtering would join 2 tables. To avoid SQL error on the columns with the name, we need to add table name (the same what was done to miq_tasks SQL generation in #344 )

in this PR:

• add jobs when generating filtering SQL for Job model
• refactor rspec by adding table name jobs to

There are no changes on UI:

BEFORE:

AFTER:

@miq-bot add-label enhancement

\cc @gtanzillo @dclarizio

[miq-bot]

Checked commits yrudman/manageiq-ui-classic@1d7df73~...060784e with ruby 2.2.6, rubocop 0.47.1, and haml-lint 0.20.0
2 files checked, 0 offenses detected
Everything looks good. ⭐