chore: refactor Dockerfile to streamline build process

Author: Sithumli

Dockerfile

@@ -1,16 +1,10 @@
-FROM golang:1.24-alpine AS deps
+FROM golang:1.24-alpine AS builder
 
 WORKDIR /app
 
 COPY container_src/go.mod ./
 RUN go mod download
 
-FROM golang:1.24-alpine AS builder
-
-WORKDIR /app
-
-COPY --from=deps /go/pkg /go/pkg
-COPY container_src/go.mod ./
 COPY container_src/*.go ./
 
 RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-w -s" -o /server