chore(deps): bump activiti-cloud.version from 8.3.0 to 8.4.0 (#470)

Bumps `activiti-cloud.version` from 8.3.0 to 8.4.0.

Updates `org.activiti.cloud:activiti-cloud-services-query-liquibase` from 8.3.0 to 8.4.0

Updates `org.activiti.cloud:activiti-cloud-services-query-model` from 8.3.0 to 8.4.0

---
updated-dependencies:
- dependency-name: org.activiti.cloud:activiti-cloud-services-query-liquibase
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.activiti.cloud:activiti-cloud-services-query-model
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

tests/gatling/pom.xml

@@ -12,7 +12,7 @@
 
   <properties>
     <java.version>21</java.version>
-    <activiti-cloud.version>8.3.0</activiti-cloud.version>
+    <activiti-cloud.version>8.4.0</activiti-cloud.version>
     <gatling.version>3.10.5</gatling.version>
     <gatling-maven-plugin.version>4.8.2</gatling-maven-plugin.version>
   </properties>