Bump org.apache.maven.plugins:maven-javadoc-plugin from 3.6.3 to 3.12.0

Bumps [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.6.3 to 3.12.0.
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](https://github.com/apache/maven-javadoc-plugin/compare/maven-javadoc-plugin-3.6.3...maven-javadoc-plugin-3.12.0)

---
updated-dependencies:
- dependency-name: org.apache.maven.plugins:maven-javadoc-plugin
  dependency-version: 3.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Closes #121

Change-Id: Iac45c2ed87ace65fab3c16496072cec85f38fb4c
diff --git a/pom.xml b/pom.xml
index 6b67abf..4f31339 100644
--- a/pom.xml
+++ b/pom.xml
@@ -308,7 +308,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.6.3</version>
+                <version>3.12.0</version>
                 <configuration>
                     <doclint>all,-missing</doclint>
                     <failOnError>false</failOnError>