Bump junit from 4.13 to 4.13.1 in /core

Bumps [junit](https://github.com/junit-team/junit4) from 4.13 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/r4.13...r4.13.1)

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

Closes #111

Change-Id: Ic7ac446082e8f31cc4f6da9d3916234d30d05f4b
diff --git a/core/pom.xml b/core/pom.xml
index f52bdc6..f8911f4 100644
--- a/core/pom.xml
+++ b/core/pom.xml
@@ -226,7 +226,7 @@
 		<dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.13</version>
+			<version>4.13.1</version>
 		</dependency>
 		<dependency>
 			<groupId>org.projectlombok</groupId>