Bump net.alchim31.maven:scala-maven-plugin from 4.9.8 to 4.9.9 (#262)

Bumps [net.alchim31.maven:scala-maven-plugin](https://github.com/davidB/scala-maven-plugin) from 4.9.8 to 4.9.9.
- [Commits](davidB/scala-maven-plugin@4.9.8...4.9.9)

---
updated-dependencies:
- dependency-name: net.alchim31.maven:scala-maven-plugin
  dependency-version: 4.9.9
  dependency-type: direct:development
  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]

boomerangScope-Opal/pom.xml

@@ -100,7 +100,7 @@
             <plugin>
                 <groupId>net.alchim31.maven</groupId>
                 <artifactId>scala-maven-plugin</artifactId>
-                <version>4.9.8</version>
+                <version>4.9.9</version>
                 <configuration>
                     <recompileMode>all</recompileMode>
                     <args>