Bump org.assertj:assertj-core from 3.27.3 to 3.27.6 in /log4j-parent

Bumps [org.assertj:assertj-core](https://github.com/assertj/assertj) from 3.27.3 to 3.27.6.
- [Release notes](https://github.com/assertj/assertj/releases)
- [Commits](assertj/assertj@assertj-build-3.27.3...assertj-build-3.27.6)

---
updated-dependencies:
- dependency-name: org.assertj:assertj-core
  dependency-version: 3.27.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

log4j-parent/pom.xml

@@ -63,7 +63,7 @@
     <activemq.version>6.1.7</activemq.version>
     <angus-activation.version>2.0.2</angus-activation.version>
     <angus-mail.version>2.0.3</angus-mail.version>
-    <assertj.version>3.27.3</assertj.version>
+    <assertj.version>3.27.6</assertj.version>
     <awaitility.version>4.3.0</awaitility.version>
     <bsh.version>2.0b6</bsh.version>
     <bnd.annotation.version>7.1.0</bnd.annotation.version>