Dockerfile changes to work with new mvn assembly configuration for log4shell-server

Fixes snyk-labs#377

Author: Eric

log4shell-goof/log4shell-server/Dockerfile

@@ -1,10 +1,10 @@
 FROM maven:3-jdk-8-slim as build
 COPY pom.xml pom.xml
 COPY src src
-RUN --mount=target=$HOME/.m2,type=cache mvn clean compile assembly:single
+RUN --mount=target=$HOME/.m2,type=cache mvn clean package
 
 FROM openjdk:8 as ldap
-COPY --from=build target/*.jar /server.jar
+COPY --from=build target/log4shell-server-*-jar-with-dependencies.jar /server.jar
 EXPOSE 8000
 EXPOSE 9999