Update Dockerfile

Dockerfile

@@ -1,13 +1,13 @@
 FROM golang:1.22 AS builder
-WORKDIR /app
+WORKDIR WORKDIR /go/src/github.com/missuo
 RUN git clone https://github.com/missuo/FreeDuckDuckGo.git
-COPY /app/FreeDuckDuckGo/main.go ./
-COPY /app/FreeDuckDuckGo/go.mod ./
-COPY app/FreeDuckDuckGo/go.sum ./
+COPY /FreeDuckDuckGo/main.go ./
+COPY /FreeDuckDuckGo/go.mod ./
+COPY /FreeDuckDuckGo/go.sum ./
 RUN go get -d -v ./
 RUN CGO_ENABLED=0 go build -a -installsuffix cgo -o FreeDuckDuckGo .
 
 FROM alpine:latest
 WORKDIR /app
-COPY --from=builder /app/FreeDuckDuckGo /app/FreeDuckDuckGo
+COPY --from=builder /go/src/github.com/missuo/FreeDuckDuckGo/FreeDuckDuckGo /app/FreeDuckDuckGo
 CMD ["/app/FreeDuckDuckGo"]