feat: create test_analytics app and database

[joseph-sentry]

• creates a new test_analytics django app
• modifies the db_settings to declare a new test analytics database
• modifies the db router to route the models from the new django app to the new database

[adrian-codecov]

Unlike timeseries, there's not read replica right

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.92%. Comparing base (98a9a16) to head (9432b0d).
Report is 10 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #474      +/-   ##
==========================================
- Coverage   90.28%   89.92%   -0.37%     
==========================================
  Files         427      324     -103     
  Lines       12836     9150    -3686     
  Branches     2107     1622     -485     
==========================================
- Hits        11589     8228    -3361     
+ Misses       1137      859     -278     
+ Partials      110       63      -47     

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[Swatinem]

The intention here is that this will eventually replace the Flake thats defined in reports right now?
How about all the other models related to TA?

[joseph-sentry]

The intention here is that this will eventually replace the Flake thats defined in reports right now?
How about all the other models related to TA?

I don't think we'll be needing them anymore given we'll be reading from BQ. The actual win in creating a new app and database connection is that we can scale the database for TA separately from coverage and all our other products