Bump io.mockk:mockk from 1.13.12 to 1.13.13

Bumps [io.mockk:mockk](https://github.com/mockk/mockk) from 1.13.12 to 1.13.13.
- [Release notes](https://github.com/mockk/mockk/releases)
- [Commits](mockk/mockk@1.13.12...1.13.13)

---
updated-dependencies:
- dependency-name: io.mockk:mockk
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -5,7 +5,7 @@ jvm = "21"
 kotlin = "2.0.20"
 kotlinJunitTools = "0.3.0"
 logback = "1.5.8"
-mockk = "1.13.12"
+mockk = "1.13.13"
 plantuml = "0.3.0"
 slf4j = "2.0.16"
 spotless = "6.25.0"