Update Dockerfile

Dockerfile

@@ -1,14 +1 @@
-FROM golang:1.22 AS builder
-WORKDIR /go/src/github.com/missuo/FreeDuckDuckGo
-RUN git clone https://github.com/missuo/FreeDuckDuckGo.git
-RUN cd FreeDuckDuckGo
-COPY main.go ./
-COPY go.mod ./
-COPY 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 /go/src/github.com/missuo/FreeDuckDuckGo/FreeDuckDuckGo /app/FreeDuckDuckGo
-CMD ["/app/FreeDuckDuckGo"]
+FROM ghcr.io/missuo/freeduckduckgo:latest