chore: Update Dockerfile

Dockerfile

@@ -1,13 +1,13 @@
-FROM openjdk:21-jdk-slim AS builder
+FROM openjdk:21-jdk-slim AS build
+
 WORKDIR /app
 
-COPY . .
+COPY ./ ./
 
-RUN chmod +x gradlew && ./gradlew build -x test
+RUN ./gradlew clean build -x test
 
 FROM openjdk:21-jdk-slim
 WORKDIR /app
-
 COPY --from=build /app/build/libs/*.jar app.jar
 
-CMD ["java", "-jar", "app.jar"]
+ENTRYPOINT ["java", "-jar", "app.jar"]