Bump maven-compiler-plugin from 3.8.1 to 3.9.0

Bumps [maven-compiler-plugin](https://github.com/apache/maven-compiler-plugin) from 3.8.1 to 3.9.0.
- [Release notes](https://github.com/apache/maven-compiler-plugin/releases)
- [Commits](apache/maven-compiler-plugin@maven-compiler-plugin-3.8.1...maven-compiler-plugin-3.9.0)

---
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] <support@github.com>

Author: dependabot[bot]

pom.xml

@@ -44,7 +44,7 @@
         <maven.javadoc.failOnError>false</maven.javadoc.failOnError>
         <project.build.outputTimestamp>1</project.build.outputTimestamp>
         <!-- Maven Plugin Versions -->
-        <maven.compiler.plugin.version>3.8.1</maven.compiler.plugin.version>
+        <maven.compiler.plugin.version>3.9.0</maven.compiler.plugin.version>
         <maven.jar.plugin.version>3.2.0</maven.jar.plugin.version>
         <maven.javadoc.plugin.version>3.3.1</maven.javadoc.plugin.version>
         <maven.release.plugin.version>3.0.0-M4</maven.release.plugin.version>
@@ -102,7 +102,7 @@
         <dependency>
             <groupId>org.json</groupId>
             <artifactId>json</artifactId>
-            <version>20210307</version>
+            <version>20211205</version>
             <scope>test</scope>
         </dependency>
         <dependency>