Bump junit from 4.13 to 4.13.1 in /NotificationHubs (#79)

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](junit-team/junit4@r4.13...r4.13.1)

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Author: dependabot[bot]

NotificationHubs/pom.xml

@@ -79,7 +79,7 @@
 	    <dependency>
 			<groupId>junit</groupId>
 			<artifactId>junit</artifactId>
-			<version>4.13</version>
+			<version>4.13.1</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>