As a plugin developer you can use this plugin as dependency of your plugin by adding a dependency tag to your POM.
To add the latest version of this plugin as a maven dependency, use the following:
<dependency>
<groupId>com.checkmarx.jenkins</groupId>
<artifactId>checkmarx-ast-scanner</artifactId>
<version>2.0.13-821.v6b_495686cdb_a_</version>
</dependency>