fix(deps): bump com.github.spotbugs:spotbugs-maven-plugin in /mylyn.docs

Bumps [com.github.spotbugs:spotbugs-maven-plugin](https://github.com/spotbugs/spotbugs-maven-plugin) from 4.9.3.2 to 4.9.4.0.
- [Release notes](https://github.com/spotbugs/spotbugs-maven-plugin/releases)
- [Commits](spotbugs/spotbugs-maven-plugin@spotbugs-maven-plugin-4.9.3.2...spotbugs-maven-plugin-4.9.4.0)

---
updated-dependencies:
- dependency-name: com.github.spotbugs:spotbugs-maven-plugin
  dependency-version: 4.9.4.0
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

mylyn.releng/org.eclipse.mylyn.parent/pom.xml

@@ -329,7 +329,7 @@
         <plugin>
           <groupId>com.github.spotbugs</groupId>
           <artifactId>spotbugs-maven-plugin</artifactId>
-          <version>4.9.3.2</version>
+          <version>4.9.4.0</version>
           <configuration>
             <xmlOutput>true</xmlOutput>
             <failOnError>false</failOnError>