Bump mockk from 1.12.7 to 1.13.3 (#9)

Bumps [mockk](https://github.com/mockk/mockk) from 1.12.7 to 1.13.3.
- [Release notes](https://github.com/mockk/mockk/releases)
- [Commits](mockk/mockk@1.12.7...1.13.3)

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

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

build.gradle.kts

@@ -46,7 +46,7 @@ allprojects {
   dependencies {
     implementation("org.javassist:javassist:3.29.2-GA")
     testImplementation("org.assertj:assertj-core:3.23.1")
-    testImplementation("io.mockk:mockk:1.12.7")
+    testImplementation("io.mockk:mockk:1.13.3")
     testImplementation("org.junit.jupiter:junit-jupiter:5.9.1")
   }