Bump junitVersion from 5.13.0 to 5.13.1 (#39)

Bumps `junitVersion` from 5.13.0 to 5.13.1.

Updates `org.junit.jupiter:junit-jupiter-api` from 5.13.0 to 5.13.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.13.0...r5.13.1)

Updates `org.junit.jupiter:junit-jupiter-engine` from 5.13.0 to 5.13.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.13.0...r5.13.1)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-version: 5.13.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-version: 5.13.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

build.gradle

@@ -14,7 +14,7 @@ repositories {
 }
 
 ext {
-    junitVersion = '5.13.0'
+    junitVersion = '5.13.1'
 }
 
 sourceCompatibility = '21'