fix dockerfile

Dockerfile

@@ -4,7 +4,7 @@ ARG NODE_VERSION=20.5.1-bullseye
 
 # build assets & compile TypeScript
 
-FROM --platform=$BUILDPLATFORM node:${NODE_VERSION} AS native-builder
+FROM node:${NODE_VERSION} AS native-builder
 
 RUN --mount=type=cache,target=/var/cache/apt,sharing=locked \
 	--mount=type=cache,target=/var/lib/apt,sharing=locked \
@@ -18,17 +18,17 @@ RUN corepack enable
 
 WORKDIR /misskey
 
-COPY --link ["pnpm-lock.yaml", "pnpm-workspace.yaml", "package.json", "./"]
-COPY --link ["scripts", "./scripts"]
-COPY --link ["packages/backend/package.json", "./packages/backend/"]
-COPY --link ["packages/frontend/package.json", "./packages/frontend/"]
-COPY --link ["packages/sw/package.json", "./packages/sw/"]
-COPY --link ["packages/misskey-js/package.json", "./packages/misskey-js/"]
+COPY ["pnpm-lock.yaml", "pnpm-workspace.yaml", "package.json", "./"]
+COPY ["scripts", "./scripts"]
+COPY ["packages/backend/package.json", "./packages/backend/"]
+COPY ["packages/frontend/package.json", "./packages/frontend/"]
+COPY ["packages/sw/package.json", "./packages/sw/"]
+COPY ["packages/misskey-js/package.json", "./packages/misskey-js/"]
 
 RUN --mount=type=cache,target=/root/.local/share/pnpm/store,sharing=locked \
 	pnpm i --frozen-lockfile --aggregate-output
 
-COPY --link . ./
+COPY . ./
 
 ARG NODE_ENV=production
 
@@ -38,7 +38,7 @@ RUN rm -rf .git/
 
 # build native dependencies for target platform
 
-FROM --platform=$TARGETPLATFORM node:${NODE_VERSION} AS target-builder
+FROM node:${NODE_VERSION} AS target-builder
 
 RUN apt-get update \
 	&& apt-get install -yqq --no-install-recommends \
@@ -48,14 +48,14 @@ RUN corepack enable
 
 WORKDIR /misskey
 
-COPY --link ["pnpm-lock.yaml", "pnpm-workspace.yaml", "package.json", "./"]
-COPY --link ["scripts", "./scripts"]
-COPY --link ["packages/backend/package.json", "./packages/backend/"]
+COPY ["pnpm-lock.yaml", "pnpm-workspace.yaml", "package.json", "./"]
+COPY ["scripts", "./scripts"]
+COPY ["packages/backend/package.json", "./packages/backend/"]
 
 RUN --mount=type=cache,target=/root/.local/share/pnpm/store,sharing=locked \
 	pnpm i --frozen-lockfile --aggregate-output
 
-FROM --platform=$TARGETPLATFORM node:${NODE_VERSION}-slim AS runner
+FROM node:${NODE_VERSION}-slim AS runner
 
 ARG UID="991"
 ARG GID="991"