Bump com.icegreen:greenmail from 2.1.1 to 2.1.2

Bumps [com.icegreen:greenmail](https://github.com/greenmail-mail-test/greenmail) from 2.1.1 to 2.1.2.
- [Release notes](https://github.com/greenmail-mail-test/greenmail/releases)
- [Commits](greenmail-mail-test/greenmail@release-2.1.1...release-2.1.2)

---
updated-dependencies:
- dependency-name: com.icegreen:greenmail
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -73,7 +73,7 @@ dependencies {
     testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
     testImplementation 'org.hamcrest:hamcrest-core:3.0'
     testImplementation 'org.mockito:mockito-core:5.14.2'
-    testImplementation('com.icegreen:greenmail:2.1.1') {
+    testImplementation('com.icegreen:greenmail:2.1.2') {
         exclude group: 'junit'
     }
     testImplementation 'org.slf4j:slf4j-simple:2.0.16'