Update go version to 1.20.5

.gitlab-ci.yml

@@ -28,7 +28,7 @@ lint:
     - cd /go/src/gitlab.com/${CI_PROJECT_PATH}
 
 unit tests:
-  image: golang:1.19.4
+  image: golang:1.20.5
   extends: .gotest
   stage: test
   tags:
@@ -37,7 +37,7 @@ unit tests:
   coverage: '/total:\s+\(statements\)\s+(\d+.\d+\%)/'
 
 govulncheck:
-  image: golang:1.19.4
+  image: golang:1.20.5
   stage: test
   tags:
     - amd64-docker

deployment/ci/Dockerfile

-FROM golang:1.19.4-alpine3.17 as builder
+FROM golang:1.20.5-alpine3.17 as builder
 
 RUN apk add git
 

deployment/compose/Dockerfile

-FROM golang:1.19.4
+FROM golang:1.20.5
 
 ENV GO111MODULE=on