Bump org.apache.maven.plugins:maven-javadoc-plugin in /tck

Bumps [org.apache.maven.plugins:maven-javadoc-plugin](https://github.com/apache/maven-javadoc-plugin) from 3.7.0 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-3.7.0...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>

tck/pom.xml

diff --git a/tck/pom.xml b/tck/pom.xml
index 184c1dc..06e9b60 100644
--- a/tck/pom.xml
+++ b/tck/pom.xml
@@ -139,7 +139,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-javadoc-plugin</artifactId>
-                    <version>3.7.0</version>
+                    <version>3.12.0</version>
                 </plugin>
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>