Update Mikro-ORM to ^6.4.4

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@mikro-orm/cli (source)	^6.4.3 -> ^6.4.4
@mikro-orm/core (source)	^6.4.3 -> ^6.4.4
@mikro-orm/migrations (source)	^6.4.3 -> ^6.4.4
@mikro-orm/postgresql (source)	^6.4.3 -> ^6.4.4

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Release Notes

mikro-orm/mikro-orm (@​mikro-orm/cli)

v6.4.4

Compare Source

Bug Fixes

• core: do not persist embeddables via em.create() (c6ed010)
• core: fix multi insert when some values of a not-null column with default are missing (cd8f6e1)
• core: ignore partial loading hint on JSON column when pruning relations (fbdea0a)
• core: reduce chance of collisions of internal embedded properties (#​6354) (98ab6a2), closes #​6351
• query-builder: process custom types in join conditions (3a6153f), closes #​6357
• schema: fixed handling of check constraints on MariaDB before 10.5.10 (#​6352) (7d41e22), closes #​6350

Features

• core: add ignoreUndefined flag to assign helper (#​6339) (bdcce17), closes #​6338
• core: allow raw query fragments in assign() helper data (c47ac64), closes #​6346
• core: support disableIdentityMap in em.upsert/Many() (e8e9d4c), closes #​6345
• seeder: make Factory.em protected (#​6340) (e66d843)

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