fix(deps): update zeebe.version to v8.8.0-rc4 (#323)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -38,7 +38,7 @@
     <java.version>${version.java}</java.version>
     <maven.compiler.release>${java.version}</maven.compiler.release>
 
-    <zeebe.version>8.8.0-rc3</zeebe.version>
+    <zeebe.version>8.8.0-rc4</zeebe.version>
 
     <spring-boot.version>3.5.6</spring-boot.version>
     <commons-beanutils.version>1.9.4</commons-beanutils.version>