use cache mounts in dockerfile

Dockerfile

@@ -3,26 +3,28 @@ ARG ui_mode=production
 WORKDIR /src/ui
 RUN corepack enable pnpm
 COPY ui/package.json ui/pnpm-lock.yaml ./
-RUN pnpm install
+RUN --mount=type=cache,id=pnpm,target=/root/.local/share/pnpm/store \
+    pnpm install --frozen-lockfile
 COPY ui ./
 RUN pnpm vite build --mode ${ui_mode}
 
 FROM golang:1.23-alpine AS api-builder
 ARG version=unknown
 WORKDIR /src
 COPY go.mod go.sum ./
-RUN go mod download
+RUN --mount=type=cache,id=golang,target=/go/pkg/mod/ \
+    go mod download
 COPY . .
 COPY --from=ui-builder /src/ui/dist ./ui/dist
-RUN \
-  go build -o /bin/goce -ldflags "-s -w -X main.version=${version}" ./cmd/goce &&\
-  go build -o /bin/godl -ldflags "-s -w" ./cmd/tools/godl
+RUN --mount=type=cache,id=golang,target=/go/pkg/mod/ \
+    --mount=type=cache,id=golang,target=/root/.cache/go-build \
+    go build -o /bin/goce -ldflags "-s -w -X main.version=${version}" ./cmd/goce &&\
+    go build -o /bin/godl -ldflags "-s -w" ./cmd/tools/godl
 
 FROM alpine:3.20
 RUN apk add ca-certificates tzdata curl tar git
-RUN \
-  addgroup -g 1000 goce && adduser -u 1000 -DG goce goce &&\
-  mkdir /opt/data && chown goce: /opt/data
+RUN addgroup -g 1000 goce && adduser -u 1000 -DG goce goce &&\
+    mkdir /opt/data && chown goce: /opt/data
 USER goce
 RUN mkdir -p ~/sdk ~/go/pkg/mod ~/.cache/go-build
 WORKDIR /opt