Bump JUNIT_VERSION from 5.12.1 to 5.12.2 (#150)

Bumps `JUNIT_VERSION` from 5.12.1 to 5.12.2.

Updates `org.junit.jupiter:junit-jupiter-api` from 5.12.1 to 5.12.2
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.1...r5.12.2)

Updates `org.junit.jupiter:junit-jupiter-engine` from 5.12.1 to 5.12.2
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.1...r5.12.2)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-version: 5.12.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-version: 5.12.2
  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

@@ -28,7 +28,7 @@ description = "Embulk plugin for generate dummy records by Java."
 sourceCompatibility = 1.8
 targetCompatibility = 1.8
 
-def JUNIT_VERSION = "5.12.1"
+def JUNIT_VERSION = "5.12.2"
 
 tasks.withType(JavaCompile) {
   options.compilerArgs << "-Xlint:deprecation" << "-Xlint:unchecked"