Add endpoint to get CautionaryAlerts from database

[LBHCallumM]

Describe this PR

What is the problem we're trying to solve

When loading cautionary alerts from an endpoint that uses GoogleSheets, it often returns 502 BadGateway. The issue correlates with a large number of requests to the endpoint, which suggests it is related to rate limiting on Google's end.

Currently, I cannot find a solution for this, other than reducing the number of requests made to the GoogleSheets API.

What changes have we introduced

This PR introduces a new endpoint GetPropertyAlertsNew and a new table in the UH database.

• URL: api/v1/cautionary-alerts/properties-new/{propertyReference}
• Table: PropertyAlertNew

To mitigate the issue with GoogleSheets, the data from the CautionaryAlerts spreadsheet will be read from a database directly.

The data will be manually imported into the database using a stored procedure.

The endpoint behaves the same as the googleSheets equivalent, other than reading data from a database.

Checklist

• Added end-to-end (i.e. integration) tests where necessary e.g to test complete functionality of a newly added feature
• Added tests to cover all new production code
• Added comments to the README or updated relevant documentation (add link to documentation), where necessary.
• Checked all code for possible refactoring
• Code pipeline builds correctly

Follow up actions after merging PR

• Create table
• Add stored procedures for adding and removing cautionary alerts from the database.