Do not perform RAT checks on yaml or json files

pom.xml

@@ -531,6 +531,9 @@ limitations under the License.
               <exclude>.git/</exclude>
               <exclude>patchprocess/</exclude>
               <exclude>.gitignore</exclude>
+              <exclude>**/*.yml</exclude>
+              <exclude>**/*.yaml</exclude>
+              <exclude>**/*.json</exclude>
               <!-- ASF jenkins box puts the Maven repo in our root directory. -->
               <exclude>.repository/</exclude>
               <exclude>**/*.diff</exclude>