Bump com.willowtreeapps.assertk:assertk-jvm from 0.28.0 to 0.28.1

Bumps [com.willowtreeapps.assertk:assertk-jvm](https://github.com/willowtreeapps/assertk) from 0.28.0 to 0.28.1.
- [Release notes](https://github.com/willowtreeapps/assertk/releases)
- [Changelog](https://github.com/willowtreeapps/assertk/blob/main/CHANGELOG.md)
- [Commits](willowtreeapps/assertk@v0.28.0...v0.28.1)

---
updated-dependencies:
- dependency-name: com.willowtreeapps.assertk:assertk-jvm
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle.kts

@@ -37,7 +37,7 @@ dependencies {
  testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
  // version 5.x requires jdk 11
  testImplementation("org.mockito.kotlin:mockito-kotlin:4.1.0")
- testImplementation("com.willowtreeapps.assertk:assertk-jvm:0.28.0")
+ testImplementation("com.willowtreeapps.assertk:assertk-jvm:0.28.1")
 }
 
 tasks.test {