Fixed dockerfile (#30)

Dockerfile

@@ -4,18 +4,22 @@ FROM golang:1.22.5-alpine3.20 AS build
 WORKDIR $GOPATH/src/github.com/0xPolygon/cdk
 
 RUN apk update && apk add --no-cache make build-base git
+
 # INSTALL DEPENDENCIES
-COPY go.mod go.sum /src/
-RUN cd /src && go mod download
+COPY go.mod go.sum ./
+RUN go mod download
 
 # BUILD BINARY
-COPY . /src
-RUN cd /src && make build
+COPY . .
+RUN make build
 
 # CONTAINER FOR RUNNING BINARY
 FROM alpine:3.20
-COPY --from=build /src/dist/cdk /app/cdk
-RUN mkdir /app/data &&  apk update && apk add postgresql15-client
+
+COPY --from=build /go/src/github.com/0xPolygon/cdk/dist/cdk /app/cdk
+
+RUN mkdir /app/data && apk update && apk add postgresql15-client
+
 EXPOSE 8123
 
 CMD ["/bin/sh", "-c", "/app/cdk run"]