Bump io.smallrye:smallrye-open-api-maven-plugin from 4.2.0 to 4.2.1

Bumps io.smallrye:smallrye-open-api-maven-plugin from 4.2.0 to 4.2.1.

---
updated-dependencies:
- dependency-name: io.smallrye:smallrye-open-api-maven-plugin
  dependency-version: 4.2.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

horreum-api/pom.xml

@@ -80,7 +80,7 @@
             <plugin>
                 <artifactId>smallrye-open-api-maven-plugin</artifactId>
                 <groupId>io.smallrye</groupId>
-                <version>4.2.0</version>
+                <version>4.2.1</version>
                 <executions>
                     <!--Generate External Schema-->
                     <execution>