Bump io.avaje:junit from 1.5 to 1.6

Bumps io.avaje:junit from 1.5 to 1.6.

---
updated-dependencies:
- dependency-name: io.avaje:junit
  dependency-version: '1.6'
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

pom.xml

@@ -32,7 +32,7 @@
     <dependency>
       <groupId>io.avaje</groupId>
       <artifactId>junit</artifactId>
-      <version>1.5</version>
+      <version>1.6</version>
       <scope>test</scope>
     </dependency>
   </dependencies>