Merge pull request #186 from ItRecode/hotfix/BE-236

[BE-236]  dockerfile에 ARG 수정

Author: Jaeyeop-Jung

dockerfile

@@ -1,4 +1,4 @@
 FROM adoptopenjdk/openjdk11
-ARG JAR_FILE=target/*.jar
+ARG JAR_FILE=build/libs/*.jar
 COPY ${JAR_FILE} app.jar
 ENTRYPOINT ["java","-jar","/app.jar"]