Bump junit from 4.8.2 to 4.13.1 in /extras/rya.merger

Bumps [junit](https://github.com/junit-team/junit4) from 4.8.2 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.13.1.md)
- [Commits](https://github.com/junit-team/junit4/compare/r4.8.2...r4.13.1)

---
updated-dependencies:
- dependency-name: junit:junit
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/extras/rya.merger/pom.xml b/extras/rya.merger/pom.xml
index afeb9e2..194eda6 100644
--- a/extras/rya.merger/pom.xml
+++ b/extras/rya.merger/pom.xml
@@ -51,7 +51,7 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.8.2</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>