Bump junitVersion from 5.9.0 to 5.9.1

Bumps `junitVersion` from 5.9.0 to 5.9.1.

Updates `junit-jupiter-api` from 5.9.0 to 5.9.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.9.0...r5.9.1)

Updates `junit-jupiter-params` from 5.9.0 to 5.9.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.9.0...r5.9.1)

Updates `junit-jupiter-engine` from 5.9.0 to 5.9.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.9.0...r5.9.1)

Updates `junit-vintage-engine` from 5.9.0 to 5.9.1
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.9.0...r5.9.1)

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

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

build.gradle

@@ -114,7 +114,7 @@ ext {
 	hoverflyJavaVersion = '0.14.3'
 	tomcatVersion = '9.0.65'
 	boringSslVersion = '2.0.54.Final'
-	junitVersion = '5.9.0'
+	junitVersion = '5.9.1'
 	junitPlatformLauncherVersion = '1.9.0'
 	mockitoVersion = '4.8.0'
 	blockHoundVersion = '1.0.6.RELEASE'