[add] docker publish

Dockerfile

@@ -3,7 +3,7 @@ FROM alpine as certs
 RUN apk update && apk add ca-certificates
 
 # Build Image
-FROM --platform=$BUILDPLATFORM golang:1.20 AS build
+FROM golang:1.20 AS build
 
 # Install Dependencies
 RUN apt-get update -y
@@ -13,13 +13,8 @@ RUN apt install -y gcc-x86-64-linux-gnu
 WORKDIR /src
 RUN mkdir -p /opt/bookmanager
 
-# Cache Dependencies & Compile
-ARG TARGETOS
-ARG TARGETARCH
-RUN --mount=target=. \
-    --mount=type=cache,target=/root/.cache/go-build \
-    --mount=type=cache,target=/go/pkg \
-    GOOS=$TARGETOS GOARCH=$TARGETARCH go build -o /opt/bookmanager/server; \
+# Compile
+RUN go build -o /opt/bookmanager/server; \
     cp -a ./templates /opt/bookmanager/templates; \
     cp -a ./assets /opt/bookmanager/assets;