Bump assertj-core from 3.17.2 to 3.18.0 (#3524)

Bumps [assertj-core](https://github.com/assertj/assertj-core) from 3.17.2 to 3.18.0.
- [Release notes](https://github.com/assertj/assertj-core/releases)
- [Commits](assertj/assertj@assertj-core-3.17.2...assertj-core-3.18.0)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit fc1dfc7)

dropwizard-dependencies/pom.xml

@@ -63,7 +63,7 @@
         <usertype.core.version>7.0.0.CR1</usertype.core.version>
 
         <!-- Test dependencies -->
-        <assertj.version>3.17.2</assertj.version>
+        <assertj.version>3.18.0</assertj.version>
         <awaitility.version>4.0.3</awaitility.version>
         <bcprov-jdk15on.version>1.66</bcprov-jdk15on.version>
         <h2.version>1.4.200</h2.version>