fix: fixed Dockerfile for arm64 build

Dockerfile

@@ -1,16 +1,23 @@
-FROM rust:alpine3.18 as builder
+FROM rust:alpine3.19 as builder
+ARG TARGETPLATFORM
 
 WORKDIR /app
+
+RUN rustup target add x86_64-unknown-linux-musl
+RUN rustup target add aarch64-unknown-linux-musl
+
 RUN apk add --no-cache musl-dev openssl-dev openssl protoc gcc
 ENV OPENSSL_DIR=/usr
 ENV RUSTFLAGS=-Ctarget-feature=-crt-static
-ENV CARGO_BUILD_TARGET=x86_64-unknown-linux-musl
 ENV OPENSSL_NO_VENDOR=1
 
+RUN CARGO_BUILD_TARGET=$([ "$TARGETPLATFORM" = "arm" ] && echo "aarch64-unknown-linux-musl" || echo "x86_64-unknown-linux-musl")
+
 COPY . .
 RUN cargo build --release
 
 FROM alpine:3.19 as runner
+ARG TARGETPLATFORM
 
 RUN apk add --no-cache musl-dev openssl-dev openssl protoc gcc
 ENV OPENSSL_DIR=/usr
@@ -21,10 +28,10 @@ RUN adduser --system --uid 1001 tapo
 
 WORKDIR /home/tapo
 
-COPY --from=builder --chown=tapo:tapo /app/target/x86_64-unknown-linux-musl/release/tapoctl /usr/bin/tapoctl
+COPY --from=builder --chown=tapo:tapo /app/target/release/tapoctl /usr/bin/tapoctl
 
 USER tapo
 
 EXPOSE 19191
 
-CMD [ "tapoctl", "serve" ]
+CMD [ "tapoctl", "serve" ]