Update Dockerfile

Dockerfile

@@ -1,29 +1,5 @@
-FROM alpine:3.16.6 as builder
+FROM FROM ghcr.io/gngpp/ninja:latest
 
-ARG VERSION
-ARG TARGETPLATFORM
-
-RUN if [ "${TARGETPLATFORM}" = "linux/arm64" ]; then \
-        echo "aarch64" > arch; \
-        echo "musl" > env; \
-    elif [ "${TARGETPLATFORM}" = "linux/amd64" ]; then \
-        echo "x86_64" > arch; \
-        echo "musl" > env; \
-    elif [ "${TARGETPLATFORM}" = "linux/arm/v7" ]; then \
-        echo "armv7" > arch; \
-        echo "musleabi" > env; \
-    elif [ "${TARGETPLATFORM}" = "linux/arm/v6" ]; then \
-        echo "arm" > arch; \
-        echo "musleabi" > env; \
-    fi
-RUN apk update && apk add wget
-RUN wget https://github.com/gngpp/ninja/releases/download/v${VERSION}/ninja-${VERSION}-$(cat arch)-unknown-linux-$(cat env).tar.gz
-RUN tar -xvf ninja-${VERSION}-$(cat arch)-unknown-linux-$(cat env).tar.gz
-
-FROM alpine:3.16.6
-
-LABEL org.opencontainers.image.authors "gngpp <gngppz@gmail.com>"
-LABEL org.opencontainers.image.source https://github.com/gngpp/ninja
 LABEL name ninja
 LABEL url https://github.com/gngpp/ninja