Download file with default provider does not work

[simaofontes-ceg]

When we try to specify it to use the default provider this is not possible.

<plugins>
      <plugin>
        <groupId>com.upplication.maven.plugins</groupId>
        <artifactId>s3-download-maven-plugin</artifactId>
        <version>1.0.2-SNAPSHOT</version>
        <executions>
          <execution>
              <phase>generate-resources</phase>
              <goals>
                  <goal>s3-download</goal>
              </goals>
              <configuration>
                  <bucketName>my-s3-bucket</bucketName>
                  <destination>/my/local/dir/</destination>
                  <!-- would like to use the default provider -->
                  <accessKey></accessKey>
                  <secretKey></secretKey>
              </configuration>
          </execution>
        </executions>
      </plugin>