Update dependency golang (#6)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

.gitlab-archive/.gitlab-ci.yml

@@ -29,7 +29,7 @@ build-binary:
   stage: build
   only:
   - tags
-  image: golang:1.17.3
+  image: golang:1.18.1
   before_script:
   - cd $GOPATH/src
   - mkdir -p gitlab.com/$CI_PROJECT_NAMESPACE

Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.17-alpine as build
+FROM golang:1.18-alpine as build
 WORKDIR /go/src/app
 COPY . /go/src/app
 RUN CGO_ENABLED=0 go build -o /go/bin/app