Changed from ubuntu:25.04 to debian:sid-slim

Reviewed-on: #12

Dockerfile

@@ -1,11 +1,17 @@
-FROM gcc:latest
+FROM gcc:latest AS build
-
-RUN g++ src/*.cpp -o Bowling
 
 WORKDIR /app
 
+COPY include/* /app/include/
+COPY src/* /app/src/
+
+RUN g++ src/*.cpp -o Bowling
+
+FROM debian:sid-slim
+
+WORKDIR /app
+
+COPY --from=build /app/Bowling Bowling
 COPY rolls.txt /app/
 
-#RUN g++ src/*.cpp -o Bowling
-
 CMD ["./Bowling", "rolls.txt"]