fix(deps): update mikro-orm monorepo to v5.9.7

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@mikro-orm/core (source)	5.9.6 -> 5.9.7
@mikro-orm/core (source)	5.8.1 -> 5.9.7
@mikro-orm/mongodb (source)	5.8.1 -> 5.9.7
@mikro-orm/mysql (source)	5.9.6 -> 5.9.7
@mikro-orm/mysql (source)	5.8.1 -> 5.9.7

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Release Notes

mikro-orm/mikro-orm (@​mikro-orm/core)

v5.9.7

Compare Source

Bug Fixes

• core: check for root entity properties in em.canPopulate() when using STI (b8fcf45), closes #​5043
• core: fix eager loading detection with multiple populate hints for one property (da1daf5), closes #​5057
• core: support pivot entities with autoincrement PK (e250634), closes #​4988
• postgres: respect column length in down migrations (222e2b8), closes #​5048

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