Use inputExcludes instead of the deprecated excludes

The excludes parameter is deprecated for removal since RAT 0.17.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

Author: slawekjaranowski

pom.xml

@@ -179,10 +179,10 @@ under the License.
           <groupId>org.apache.rat</groupId>
           <artifactId>apache-rat-plugin</artifactId>
           <configuration>
-            <excludes combine.children="append">
+            <inputExcludes combine.children="append">
               <exclude>src/it/reproducible/src/main/resources/**/*.txt</exclude>
               <exclude>.github/*.md</exclude>
-            </excludes>
+            </inputExcludes>
           </configuration>
         </plugin>
       </plugins>