checktyle:check does not use custom checkstyle xml files when used in a multiproject mode with a build-tools project passed as a plugin dependency

<build>
    <plugins>
      <plugin>
        <artifactId>maven-checkstyle-plugin</artifactId>
        <dependencies>
          <dependency>
            <groupId>org.codehaus.cargo</groupId>
            <artifactId>cargo-build-tools</artifactId>
            <version>0.8-SNAPSHOT</version>
          </dependency>
        </dependencies>
        <executions>
          <execution>
            <configuration>
              <configLocation>build-tools/checkstyle.xml</configLocation>
              <headerLocation>build-tools/checkstyle.license</headerLocation>
              <suppressionsLocation>build-tools/checkstyle-suppressions.xml</suppressionsLocation>
            </configuration>
            <goals>
              <goal>check</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>