Checkstyle: Replaced property scope with new accessModifiers for JavadocVariable check (#55)

As per upcoming changes in
checkstyle/checkstyle#16049 for
[JavadocVariable](https://checkstyle.org/checks/javadoc/javadocvariable.html#JavadocVariable)
check, this PR replaces`scope` with new `accessModifiers` property.

No further changes required in [pmd](https://github.com/pmd/pmd).

>[!NOTE]  
>This PR should be merged after the release of checkstyle 10.22.0

Author: adangel

src/main/resources/net/sourceforge/pmd/pmd-checkstyle-config.xml

@@ -38,7 +38,7 @@
     </module>
     <module name="JavadocVariable">
       <property name="severity" value="warning"/>
-      <property name="scope" value="protected"/>
+      <property name="accessModifiers" value="protected"/>
     </module>
     <module name="NonEmptyAtclauseDescription">
       <property name="severity" value="warning"/>