Bump org.apache.maven.plugins:maven-compiler-plugin

Bumps [org.apache.maven.plugins:maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 3.11.0 to 3.12.0.
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](apache/maven-compiler-plugin@maven-compiler-plugin-3.11.0...maven-compiler-plugin-3.12.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -149,7 +149,7 @@
     <license.header.resource>jetty-header-epl2.0-apache2.0-template.txt</license.header.resource>
     <maven.assembly.plugin.version>3.6.0</maven.assembly.plugin.version>
     <maven.clean.plugin.version>3.3.1</maven.clean.plugin.version>
-    <maven.compiler.plugin.version>3.11.0</maven.compiler.plugin.version>
+    <maven.compiler.plugin.version>3.12.0</maven.compiler.plugin.version>
     <maven.compiler.source>${jdk.version.minimum}</maven.compiler.source>
     <maven.compiler.target>${jdk.version.minimum}</maven.compiler.target>
     <maven.dependency.plugin.version>3.6.1</maven.dependency.plugin.version>