Bump junit in /src/it/multirelease-patterns/singleproject-runtime

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)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/it/multirelease-patterns/singleproject-runtime/pom.xml

@@ -76,7 +76,7 @@
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
-     <version>4.12</version>
+     <version>4.13.1</version>
      <scope>test</scope>
    </dependency>
   </dependencies>