Bump org.junit.platform:junit-platform-testkit from 1.10.2 to 1.10.3

Bumps [org.junit.platform:junit-platform-testkit](https://github.com/junit-team/junit5) from 1.10.2 to 1.10.3.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](https://github.com/junit-team/junit5/commits)

---
updated-dependencies:
- dependency-name: org.junit.platform:junit-platform-testkit
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

gradle/libs.versions.toml

@@ -72,7 +72,7 @@ kryo = "5.6.0"
 bytebuddy = "1.14.18"
 mockServer = "5.15.0"
 archunit = "1.3.0"
-testkit = "1.10.2"
+testkit = "1.10.3"
 openapi = "4.10.0"
 autoService = "1.1.1"
 awaitility = "4.2.1"