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:development
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

modules/transport/mail/pom.xml

@@ -63,7 +63,7 @@
         <dependency>
             <groupId>com.icegreen</groupId>
             <artifactId>greenmail</artifactId>
-            <version>2.1.1</version>
+            <version>2.1.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>