Bump assertj-core from 3.13.2 to 3.16.1 (#60)

Bumps [assertj-core](https://github.com/joel-costigliola/assertj-core) from 3.13.2 to 3.16.1.
- [Release notes](https://github.com/joel-costigliola/assertj-core/releases)
- [Commits](assertj/assertj@assertj-core-3.13.2...assertj-core-3.16.1)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

pom.xml

@@ -19,7 +19,7 @@
 
     <!-- Dependency versions -->
     <asmVersion>7.2</asmVersion>
-    <assertjVersion>3.13.2</assertjVersion>
+    <assertjVersion>3.16.1</assertjVersion>
     <commonsIoVersion>2.5</commonsIoVersion>
     <gizzlyServerVersion>2.4.3</gizzlyServerVersion>
     <h2DatabaseVersion>1.4.192</h2DatabaseVersion>