Bump assertj-core from 3.20.0 to 3.20.1 (#2032)

Bumps [assertj-core](https://github.com/assertj/assertj-core) from 3.20.0 to 3.20.1.
- [Release notes](https://github.com/assertj/assertj-core/releases)
- [Commits](assertj/assertj@assertj-core-3.20.0...assertj-core-3.20.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
(cherry picked from commit 9120c15)

pom.xml

@@ -49,7 +49,7 @@
         <jackson.version>2.9.10</jackson.version>
         <jetty9.version>9.4.42.v20210604</jetty9.version>
         <slf4j.version>1.7.30</slf4j.version>
-        <assertj.version>3.20.0</assertj.version>
+        <assertj.version>3.20.1</assertj.version>
         <mockito.version>3.11.1</mockito.version>
         <junit.version>4.13.1</junit.version>
         <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>