Bump junit from 4.12 to 4.13.1 (#10)

Bumps [junit](https://github.com/junit-team/junit4) from 4.12 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.12.md)
- [Commits](junit-team/junit4@r4.12...r4.13.1)

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

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

pom.xml

@@ -25,7 +25,7 @@
     <jsch-extension.version>0.1.6</jsch-extension.version>
     <validation-api.version>1.1.0.Final</validation-api.version>
     <slf4j.version>1.7.5</slf4j.version>
-    <junit.version>4.12</junit.version>
+    <junit.version>4.13.1</junit.version>
     <mockito.version>1.10.19</mockito.version>
     <hamcrest.version>1.3</hamcrest.version>
     <maven.checkstyle.plugin.version>3.0.0</maven.checkstyle.plugin.version>