Bump org.assertj:assertj-core in /modules/flowable-dependencies

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.27.6 to 3.27.7.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.27.6...assertj-build-3.27.7)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-version: 3.27.7
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

modules/flowable-dependencies/pom.xml

@@ -71,7 +71,7 @@
         <postgresql.version>42.7.8</postgresql.version>
 
         <!-- Test dependencies -->
-        <assertj.version>3.27.6</assertj.version>
+        <assertj.version>3.27.7</assertj.version>
         <awaitility.version>4.3.0</awaitility.version>
         <hibernate.version>7.1.8.Final</hibernate.version>
         <json-unit.version>5.1.0</json-unit.version>