Bump junit from 4.11 to 4.13.1

Bumps [junit](https://github.com/junit-team/junit4) from 4.11 to 4.13.1.
- [Release notes](https://github.com/junit-team/junit4/releases)
- [Changelog](https://github.com/junit-team/junit4/blob/main/doc/ReleaseNotes4.11.md)
- [Commits](junit-team/junit4@r4.11...r4.13.1)

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

pom.xml

@@ -29,7 +29,7 @@
         <mysql.version>5.1.30</mysql.version>
         <druid.version>1.0.14</druid.version>
         <jackson.version>2.3.3</jackson.version>
-        <junit.version>4.11</junit.version>
+        <junit.version>4.13.1</junit.version>
         <guava.version>16.0.1</guava.version>
         <java.version>1.7</java.version>
     </properties>