feat: refactored Dockerfile

Dockerfile

@@ -1,15 +1,12 @@
 FROM golang:latest
-LABEL authors="nik"
 
-# This dockerfile for run test Golang app
-# Copy all files from current directory to /app in container
-COPY . /app
-
-# Set working directory
 WORKDIR /app
 
-# Run go test
-CMD ["go", "test", "-v"]
+COPY go.mod .
+COPY go.sum .
+
+RUN go mod download
+
+COPY . .
 
-# console run command
-# docker build -t go-test .
+CMD ["go", "test", "-v", "./..."]