build(deps): bump io.camunda:zeebe-client-java in /spring

Bumps [io.camunda:zeebe-client-java](https://github.com/camunda/zeebe) from 8.4.1 to 8.4.2.
- [Release notes](https://github.com/camunda/zeebe/releases)
- [Commits](camunda/camunda@8.4.1...8.4.2)

---
updated-dependencies:
- dependency-name: io.camunda:zeebe-client-java
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

spring/pom.xml

@@ -19,7 +19,7 @@
 	<properties>
 		<java.version>11</java.version>
 		<spring-zeebe.version>8.1.17</spring-zeebe.version>
-		<zeebe.version>8.4.1</zeebe.version>
+		<zeebe.version>8.4.2</zeebe.version>
 	</properties>
 
 	<dependencies>