chore(deps): Bump org.axonframework:axon-bom in /delivery

Bumps [org.axonframework:axon-bom](https://github.com/AxonFramework/axon-bom) from 4.9.2 to 4.9.4.
- [Release notes](https://github.com/AxonFramework/axon-bom/releases)
- [Commits](AxonFramework/axon-bom@axon-4.9.2...axon-4.9.4)

---
updated-dependencies:
- dependency-name: org.axonframework:axon-bom
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

delivery/build.gradle.kts

@@ -31,7 +31,7 @@ repositories {
     }
 }
 
-val axonVersion = "4.9.2"
+val axonVersion = "4.9.4"
 val kotestVersion = "5.8.0"
 
 dependencies {