fix(deps): update dependency io.camunda:zeebe-client-java to v8.7.8

Author: renovate[bot]

pom.xml

@@ -44,7 +44,7 @@
 		<dependency>
 			<groupId>io.camunda</groupId>
 			<artifactId>zeebe-client-java</artifactId>
-			<version>8.4.5</version>
+			<version>8.7.8</version>
 		</dependency>
 	</dependencies>