Bump junit-jupiter-engine from 5.7.2 to 5.8.1

Bumps [junit-jupiter-engine](https://github.com/junit-team/junit5) from 5.7.2 to 5.8.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](https://github.com/junit-team/junit5/compare/r5.7.2...r5.8.1)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -16,7 +16,7 @@ buildscript {
         // test
         jacocoToolVersion = '0.8.7'
         junitPlatformVersion = '1.8.1'
-        jupiterVersion = '5.7.2'
+        jupiterVersion = '5.8.1'
         spek2Version = '2.0.12'
         spekExtensionsVersion = '1.2.1'
         spekExtensions = { "ch.tutteli.spek:tutteli-spek-extensions:$spekExtensionsVersion" }