Bump org.cyclonedx:cyclonedx-maven-plugin from 2.8.2 to 2.9.0

Bumps [org.cyclonedx:cyclonedx-maven-plugin](https://github.com/CycloneDX/cyclonedx-maven-plugin) from 2.8.2 to 2.9.0.
- [Release notes](https://github.com/CycloneDX/cyclonedx-maven-plugin/releases)
- [Commits](CycloneDX/cyclonedx-maven-plugin@cyclonedx-maven-plugin-2.8.2...cyclonedx-maven-plugin-2.9.0)

---
updated-dependencies:
- dependency-name: org.cyclonedx:cyclonedx-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

pom.xml

@@ -73,7 +73,7 @@
     <io7m.build-helper-maven-plugin.version>3.6.0</io7m.build-helper-maven-plugin.version>
     <io7m.buildnumber-maven-plugin.version>3.2.1</io7m.buildnumber-maven-plugin.version>
     <io7m.checksum-maven-plugin.version>1.11</io7m.checksum-maven-plugin.version>
-    <io7m.cyclonedx-maven-plugin.version>2.8.2</io7m.cyclonedx-maven-plugin.version>
+    <io7m.cyclonedx-maven-plugin.version>2.9.0</io7m.cyclonedx-maven-plugin.version>
     <io7m.exec-maven-plugin.version>3.4.1</io7m.exec-maven-plugin.version>
     <io7m.extra-enforcer-rules.version>1.9.0</io7m.extra-enforcer-rules.version>
     <io7m.fb-contrib-plugin.version>7.4.0.sb</io7m.fb-contrib-plugin.version>