chore(deps): update mapstruct monorepo to v1.6.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change	OpenSSF
org.mapstruct:mapstruct-processor (source)		patch	1.6.2 -> 1.6.3
org.mapstruct:mapstruct (source)	compile	patch	1.6.2 -> 1.6.3

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Release Notes

mapstruct/mapstruct (org.mapstruct:mapstruct-processor)

### [`v1.6.3`](https://redirect.github.com/mapstruct/mapstruct/releases/tag/1.6.3) [Compare Source](https://redirect.github.com/mapstruct/mapstruct/compare/1.6.2...1.6.3) ##### Bugs - Redundant if condition in Java record mapping with `RETURN_DEFAULT` strategy ([#​3747](https://redirect.github.com/mapstruct/mapstruct/issues/3747)) - Stackoverflow with Immutables custom builder ([#​3370](https://redirect.github.com/mapstruct/mapstruct/issues/3370)) - Unused import of `java.time.LocalDate` when mapping source `LocalDateTime` to target `LocalDate` ([#​3732](https://redirect.github.com/mapstruct/mapstruct/issues/3732)) ##### Documentation - Add section to README.md comparing mapstruct with Java Records ([#​3751](https://redirect.github.com/mapstruct/mapstruct/issues/3751))

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