Fix image build (#815)

closes #814 

Changing to _Alpine_ version is required to install `jq` package. But
this alpine image doesn't contain some important packages, thus
installed them too.

Using jq also required because it formats JSON from Github request and
we _grep_ results from it

.docker/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.20 as builder
+FROM golang:1.20-alpine as builder
 
 ARG BUILD=now
 ARG REPO=github.com/nspcc-dev/neofs-s3-gw
@@ -7,6 +7,8 @@ ARG VERSION=dev
 WORKDIR /src
 COPY . /src
 
+RUN apk add --no-cache jq make bash curl
+
 RUN make
 
 # Executable image