dev/core#4905 - Deprecate CustomGroup::getAllCustomGroupsByBaseEntity

[colemanw]

Overview

Actively deprecates older uncached functions that were used to fetch custom fields, in favor of the new one added for dev/core#4905.

Technical Details

I did a before/after var_dump + diff of the output from ProfileEditor:: convertCiviModelToBackboneModel and verified it's exactly the same.

[civibot]

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[civibot]

The issue associated with the Pull Request can be viewed at https://lab.civicrm.org/dev/core/-/issues/4905