Bump org.apache.maven.plugins:maven-javadoc-plugin from 3.11.2 to 3.12.0

Bumps [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.11.2 to 3.12.0.
- [Release notes](https://github.com/apache/maven-javadoc-plugin/releases)
- [Commits](apache/maven-javadoc-plugin@maven-javadoc-plugin-3.11.2...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>

Author: dependabot[bot]

pom.xml

@@ -146,7 +146,7 @@
             <plugin>
                 <!-- Javadoc generation fails on JDK 16 when using the inherited plugin configuration. -->
                 <artifactId>maven-javadoc-plugin</artifactId>
-                <version>3.11.2</version>
+                <version>3.12.0</version>
                 <configuration>
                     <!-- https://stackoverflow.com/a/66170815/49489 -->
                     <source>8</source>
@@ -250,7 +250,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-javadoc-plugin</artifactId>
-                        <version>3.11.2</version>
+                        <version>3.12.0</version>
                         <executions>
                             <execution>
                                 <id>attach-javadocs</id>