\Drupal\Tests\Core\Entity\TypedData\EntityAdapterUnitTest does not mock entity_type->getId() correctly triggering deprecations on PHP 8.5

Problem/Motivation

\Drupal\Tests\Core\Entity\TypedData\EntityAdapterUnitTest does not set up EntityType::getId() correctly causing deprecations on PHP 8.5.

Steps to reproduce

Run \Drupal\Tests\Core\Entity\TypedData\EntityAdapterUnitTest

Proposed resolution

Set up the mock correctly.

Remaining tasks

User interface changes

None

Introduced terminology

N/a

API changes

None

Data model changes

None

Release notes snippet

N/a