build(deps): bump assertj-core from 3.21.0 to 3.23.1

Bumps [assertj-core](https://github.com/assertj/assertj-core) from 3.21.0 to 3.23.1.
- [Release notes](https://github.com/assertj/assertj-core/releases)
- [Commits](assertj/assertj@assertj-core-3.21.0...assertj-core-3.23.1)

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

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

Author: dependabot[bot]

pom.xml

@@ -85,7 +85,7 @@
     <junit.version>4.13.2</junit.version>
     <jackson.version>2.13.3</jackson.version>
     <jackson-databind.version>${jackson.version}</jackson-databind.version>
-    <assertj.version>3.21.0</assertj.version>
+    <assertj.version>3.23.1</assertj.version>
     <hamcrest.version>2.2</hamcrest.version>
     <mockito.version>4.0.0</mockito.version>