Bump kafka from 1.12.0 to 1.12.1 (#185)

Bumps [kafka](https://github.com/testcontainers/testcontainers-java) from 1.12.0 to 1.12.1.
- [Release notes](https://github.com/testcontainers/testcontainers-java/releases)
- [Changelog](https://github.com/testcontainers/testcontainers-java/blob/master/CHANGELOG.md)
- [Commits](testcontainers/testcontainers-java@1.12.0...1.12.1)

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

examples/java/build.gradle

@@ -49,7 +49,7 @@ dependencies {
     compileOnly 'org.projectlombok:lombok:1.18.8'
     annotationProcessor 'org.projectlombok:lombok:1.18.8'
 
-    compile 'org.testcontainers:kafka:1.12.0'
+    compile 'org.testcontainers:kafka:1.12.1'
 
     compile 'org.apache.commons:commons-math3:3.6.1'