simplify Dockerfile by combining adduser and chown commands

Author: Helltar

Dockerfile

@@ -14,10 +14,7 @@ WORKDIR /app
 COPY --from=builder /app/build/libs/*.jar signai.jar
 COPY data/avatar.jpg data/avatar.jpg
 
-RUN apk add --no-cache bash curl
-
-RUN adduser -u 10001 -D -s /bin/sh signai
-RUN chown -R signai:signai /app
+RUN adduser -u 10001 -D -s /bin/sh signai && chown -R signai:signai /app
 
 USER signai