Avoid reference to deprecated property. (#221)

[swpalmer]

This addresses Issue #221 with the same check to guard access to the deprecated property as found at

gradle-modules-plugin/src/main/java/org/javamodularity/moduleplugin/tasks/CompileModuleInfoTask.java

Line 104 in cc1f0fd

compileModuleInfoJava.getDestinationDirectory().set(helper().getModuleInfoDir());

[siordache]

Thanks for the pull request!