Bump maven.version from 3.8.2 to 3.8.4

Bumps `maven.version` from 3.8.2 to 3.8.4.

Updates `maven-plugin-api` from 3.8.2 to 3.8.4
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.2...maven-3.8.4)

Updates `maven-core` from 3.8.2 to 3.8.4
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.2...maven-3.8.4)

Updates `maven-artifact` from 3.8.2 to 3.8.4
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.2...maven-3.8.4)

Updates `maven-compat` from 3.8.2 to 3.8.4
- [Release notes](https://github.com/apache/maven/releases)
- [Commits](https://github.com/apache/maven/compare/maven-3.8.2...maven-3.8.4)

---
updated-dependencies:
- dependency-name: org.apache.maven:maven-plugin-api
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.maven:maven-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.maven:maven-artifact
  dependency-type: direct:production
  update-type: version-update:semver-patch
- dependency-name: org.apache.maven:maven-compat
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 510efe5..319005e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -517,7 +517,7 @@
         <jibx.version>1.3.3</jibx.version>
         <log4j2.version>2.16.0</log4j2.version>
         <maven.archiver.version>3.5.1</maven.archiver.version>
-        <maven.version>3.8.2</maven.version>
+        <maven.version>3.8.4</maven.version>
         <plexus.utils.version>3.4.1</plexus.utils.version>
         <rhino.version>1.6R7</rhino.version>
         <slf4j.version>1.7.32</slf4j.version>