build(deps-dev): bump de.flapdoodle.embed:de.flapdoodle.embed.mongo (#3248)

Bumps [de.flapdoodle.embed:de.flapdoodle.embed.mongo](https://github.com/flapdoodle-oss/de.flapdoodle.embed.mongo) from 4.18.1 to 4.20.0.
- [Commits](https://github.com/flapdoodle-oss/de.flapdoodle.embed.mongo/compare/de.flapdoodle.embed.mongo-4.18.1...de.flapdoodle.embed.mongo-4.20.0)

---
updated-dependencies:
- dependency-name: de.flapdoodle.embed:de.flapdoodle.embed.mongo
  dependency-version: 4.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

hexagonal-architecture/pom.xml

@@ -54,7 +54,7 @@
     <dependency>
       <groupId>de.flapdoodle.embed</groupId>
       <artifactId>de.flapdoodle.embed.mongo</artifactId>
-      <version>4.18.1</version>
+      <version>4.20.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>