Bump net.alchim31.maven:scala-maven-plugin in /jvm-packages/xgboost4j (#10217)

Bumps net.alchim31.maven:scala-maven-plugin from 4.8.1 to 4.9.0.

---
updated-dependencies:
- dependency-name: net.alchim31.maven:scala-maven-plugin
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

jvm-packages/pom.xml

@@ -410,7 +410,7 @@
             <plugin>
                 <groupId>net.alchim31.maven</groupId>
                 <artifactId>scala-maven-plugin</artifactId>
-                <version>4.8.1</version>
+                <version>4.9.0</version>
                 <executions>
                     <execution>
                         <id>compile</id>
@@ -473,7 +473,7 @@
             <plugin>
                 <groupId>net.alchim31.maven</groupId>
                 <artifactId>scala-maven-plugin</artifactId>
-                <version>4.8.1</version>
+                <version>4.9.0</version>
                 <configuration>
                     <jvmArgs>
                         <jvmArg>-Xms64m</jvmArg>