fix(deps): update dependency org.springframework.modulith:spring-modulith-bom to v1.3.4

Author: renovate[bot]

spring-modulith-outbox-pattern/pom.xml

@@ -21,7 +21,7 @@
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
         <java.version>21</java.version>
-        <spring-modulith.version>1.3.3</spring-modulith.version>
+        <spring-modulith.version>1.3.4</spring-modulith.version>
         <springdoc-openapi.version>2.8.5</springdoc-openapi.version>
 
         <project.testresult.directory>${project.build.directory}/test-results</project.testresult.directory>