Bump com.icegreen:greenmail-junit5 in the dev-deps group (#74)

Bumps the dev-deps group with 1 update: [com.icegreen:greenmail-junit5](https://github.com/greenmail-mail-test/greenmail).


Updates `com.icegreen:greenmail-junit5` from 2.1.7 to 2.1.8
- [Release notes](https://github.com/greenmail-mail-test/greenmail/releases)
- [Commits](greenmail-mail-test/greenmail@release-2.1.7...release-2.1.8)

---
updated-dependencies:
- dependency-name: com.icegreen:greenmail-junit5
  dependency-version: 2.1.8
  dependency-type: direct:development
  update-type: version-update:semver-patch
  dependency-group: dev-deps
...

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

Author: dependabot[bot]

pom.xml

@@ -68,7 +68,7 @@
 		<dependency>
 			<groupId>com.icegreen</groupId>
 			<artifactId>greenmail-junit5</artifactId>
-			<version>2.1.7</version>
+			<version>2.1.8</version>
 			<scope>test</scope>
 			<exclusions>
 				<exclusion>