Bump mapStructVersion from 1.6.2 to 1.6.3 (#9723)

Bumps `mapStructVersion` from 1.6.2 to 1.6.3.

Updates `org.mapstruct:mapstruct` from 1.6.2 to 1.6.3
- [Release notes](https://github.com/mapstruct/mapstruct/releases)
- [Commits](mapstruct/mapstruct@1.6.2...1.6.3)

Updates `org.mapstruct:mapstruct-processor` from 1.6.2 to 1.6.3
- [Release notes](https://github.com/mapstruct/mapstruct/releases)
- [Commits](mapstruct/mapstruct@1.6.2...1.6.3)

---
updated-dependencies:
- dependency-name: org.mapstruct:mapstruct
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.mapstruct:mapstruct-processor
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle.kts

@@ -31,7 +31,7 @@ plugins {
 // Can't use typed variable syntax due to Dependabot limitations
 extra.apply {
     set("grpcVersion", "1.68.1")
-    set("mapStructVersion", "1.6.2")
+    set("mapStructVersion", "1.6.3")
     set("nodeJsVersion", "18.18.0")
     set("protobufVersion", "3.25.5")
     set("reactorGrpcVersion", "1.2.4")