如何对Spring boot build-image maven插件生成的docker镜像设置编码

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
        <plugin>
            <groupId>com.spotify</groupId>
            <artifactId>dockerfile-maven-plugin</artifactId>
            <version>1.4.13</version>
            <executions>
                <execution>
                    <id>default</id>
                    <goals>
                        <goal>build</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <buildArgs>
                    <JAR_FILE>${project.build.finalName}.jar</JAR_FILE>
                    <ENCODING>UTF-8</ENCODING>
                </buildArgs>
            </configuration>
        </plugin>
    </plugins>
</build>

FROM adoptopenjdk:11-jre-hotspot
ARG JAR_FILE
ARG ENCODING
COPY ${JAR_FILE} app.jar
ENV LANG ${ENCODING}
ENTRYPOINT ["java", "-jar", "/app.jar"]

mvn clean package spring-boot:build-image