Bump mockkVersion from 1.13.11 to 1.13.12

Bumps `mockkVersion` from 1.13.11 to 1.13.12.

Updates `io.mockk:mockk` from 1.13.11 to 1.13.12
- [Release notes](https://github.com/mockk/mockk/releases)
- [Commits](mockk/mockk@1.13.11...1.13.12)

Updates `io.mockk:mockk-dsl-jvm` from 1.13.11 to 1.13.12
- [Release notes](https://github.com/mockk/mockk/releases)
- [Commits](mockk/mockk@1.13.11...1.13.12)

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

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle.kts

@@ -2,7 +2,7 @@ val javaVersion = JavaVersion.VERSION_21
 val ktorVersion = "2.3.12"
 val kotestVersion = "5.9.1"
 val jacksonVersion = "2.17.2"
-val mockkVersion = "1.13.11"
+val mockkVersion = "1.13.12"
 val felleslibVersion = "0.0.140"
 
 plugins {