Bump junit-bom from 5.8.0-M1 to 5.8.0-RC1 (#260)

Bumps [junit-bom](https://github.com/junit-team/junit5) from 5.8.0-M1 to 5.8.0-RC1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.8.0-M1...r5.8.0-RC1)

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

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pom.xml

@@ -242,7 +242,7 @@ file comparators, endian transformation classes, and much more.
       <dependency>
         <groupId>org.junit</groupId>
         <artifactId>junit-bom</artifactId>
-        <version>5.8.0-M1</version>
+        <version>5.8.0-RC1</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>