Support Checkstyle 10.22.0

[BaumiCoder]

New feature, improvement proposal

There were breaking changes in CheckStyle 10.22.0. From the Release nodes:

Breaking backward compatibility:

• JavadocVariable: new property 'accessModifiers' as substitution of 'scope' and 'excludeScope' . Author: Konstantinos Koutsilis #9280
• Change default or IllegalIdentifierName. Author: SteLeo1602 #15499

Please adjust the plugin to these changes. Epically the first one can be very confusing when using different CheckStyle tools (e.g., the maven plugin and the IntelliJ Plugin) on the newest version. Each one another format in the checkstyle.xml.

[slachiewicz]

Note: Checkstyle 10.x requires Java 11, here we have only Java 8.