Enabled Unique Field DataBase validation

[freddyDOTCMS]

Parent Issue

#29459

User Story

This new validation is going to be disabled until all the issue related are done, so we need to do some stuff:

• Enabled to use this approach as DEFAULT.
• Add the TaskUpgrade created here #30275 to the TaskLocatorUtil and renamed according with the current date.
• Update the postgres.sql file
• Check if we ned to index the supporting_values column.

Acceptance Criteria

Enabled this approach to be the DEFAULT one.

Proposed Objective

Core Features

Proposed Priority

Priority 2 - Important

External Links... Slack Conversations, Support Tickets, Figma Designs, etc.

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Assumptions & Initiation Needs

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Quality Assurance Notes & Workarounds

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Sub-Tasks & Estimates

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