Bump org.junit:junit-bom from 5.12.2 to 5.13.0

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.12.2 to 5.13.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.12.2...r5.13.0)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 5.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

pom.xml

@@ -36,7 +36,7 @@
     <io7m.java.targetJavaVersion>21</io7m.java.targetJavaVersion>
 
     <!-- Third-party dependencies. -->
-    <org.junit.version>5.12.2</org.junit.version>
+    <org.junit.version>5.13.0</org.junit.version>
     <!-- https://hub.docker.com/_/alpine/ -->
     <com.io7m.oci.versionAlpine>3.21.3</com.io7m.oci.versionAlpine>
     <!-- https://hub.docker.com/_/eclipse-temurin -->