Upgrade maven-compiler-plugin 3.8.1 -> 3.10.1 (#190)

And configure the `--release` rather than `--source` and `--target` flags.

See:
- https://github.com/apache/maven-compiler-plugin/releases/tag/maven-compiler-plugin-3.9.0
- https://github.com/apache/maven-compiler-plugin/releases/tag/maven-compiler-plugin-3.10.0
- https://github.com/apache/maven-compiler-plugin/releases/tag/maven-compiler-plugin-3.10.1
- apache/maven-compiler-plugin@maven-compiler-plugin-3.8.1...maven-compiler-plugin-3.10.1

pom.xml

@@ -457,7 +457,7 @@
                 <plugin>
                     <groupId>org.apache.maven.plugins</groupId>
                     <artifactId>maven-compiler-plugin</artifactId>
-                    <version>3.8.1</version>
+                    <version>3.10.1</version>
                     <configuration>
                         <annotationProcessorPaths>
                             <path>
@@ -478,8 +478,7 @@
                             <arg>10000</arg>
                         </compilerArgs>
                         <parameters>true</parameters>
-                        <source>${version.jdk}</source>
-                        <target>${version.jdk}</target>
+                        <release>${version.jdk}</release>
                         <!-- Erroneously inverted logic... for details, see
                         https://issues.apache.org/jira/browse/MCOMPILER-209. -->
                         <useIncrementalCompilation>false</useIncrementalCompilation>