Bump com.icegreen:greenmail from 2.1.1 to 2.1.2 (#4486)

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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

tests/tests-integrations/pom.xml

@@ -24,7 +24,7 @@
 		<dependency>
 			<groupId>com.icegreen</groupId>
 			<artifactId>greenmail</artifactId>
-			<version>2.1.1</version>
+			<version>2.1.2</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>