move source label to the runner stage in Dockerfile

Author: br0kenpixel

Dockerfile

@@ -1,5 +1,3 @@
-LABEL org.opencontainers.image.source="https://github.com/pixelweatherproject/pwmp-server"
-
 ###
 ### Build stage
 ###
@@ -16,6 +14,8 @@ RUN apk update && apk add git && cargo build --release --locked
 
 FROM alpine:3.23.3 AS runner
 
+LABEL org.opencontainers.image.source="https://github.com/pixelweatherproject/pwmp-server"
+
 RUN apk update && apk add tini
 WORKDIR /app
 COPY --from=build /app/target/release/pwmp-server /app/pwmp-server