feat: update to Go 1.20 (#1838)

Co-authored-by: Manu Gupta <manugupt1@gmail.com>

.github/workflows/goreleaser.yml

@@ -14,7 +14,7 @@ jobs:
       - name: setup-go
         uses: actions/setup-go@v2
         with:
-          go-version: 1.19
+          go-version: "1.20"
       - name: capture current date
         id: date
         run: echo "::set-output name=date::$(date -u '+%Y-%m-%d-%H:%M:%S-%Z')"

Dockerfile.test

@@ -1,4 +1,4 @@
-ARG GOLANG_VERSION=1.19
+ARG GOLANG_VERSION=1.20
 FROM golang:$GOLANG_VERSION
 
 RUN echo $GOLANG_VERSION

Makefile

@@ -4,7 +4,7 @@ DATE=$(shell date -u +%Y-%m-%d-%H:%M:%S-%Z)
 GOLANGCI_LINT_VERSION=v1.51.2
 
 ifndef GOLANG_VERSION
-override GOLANG_VERSION = 1.19
+override GOLANG_VERSION = 1.20
 endif
 
 .PHONY: build

appveyor.yml

@@ -10,7 +10,7 @@ environment:
   GOPROXY: https://proxy.golang.org
   SKIP_UNTIL_113: true
 
-stack: go 1.19
+stack: go 1.20
 
 test_script:
   - go version

cmd/proxy/Dockerfile

@@ -5,7 +5,7 @@
 # You can override the Go version used to build the image.
 # See project Makefile if using make.
 # See docker --build-arg if building directly.
-ARG GOLANG_VERSION=1.19
+ARG GOLANG_VERSION=1.20
 ARG ALPINE_VERSION=3.15
 
 FROM golang:${GOLANG_VERSION}-alpine AS builder

docker-compose.yml

@@ -5,7 +5,7 @@ services:
       context: .
       dockerfile: cmd/proxy/Dockerfile
       args:
-        GOLANG_VERSION: 1.19
+        GOLANG_VERSION: 1.20
     environment:
       - ATHENS_MONGO_STORAGE_URL=mongodb://mongo:27017
       - TIMEOUT=20 # in case the mongo dependency takes longer to start up
@@ -20,7 +20,7 @@ services:
       context: .
       dockerfile: Dockerfile.test
       args:
-        GOLANG_VERSION: 1.19
+        GOLANG_VERSION: 1.20
     command: ["./scripts/test_unit.sh"]
     environment:
       - GO_ENV=test
@@ -36,7 +36,7 @@ services:
       context: .
       dockerfile: Dockerfile.test
       args:
-        GOLANG_VERSION: 1.19
+        GOLANG_VERSION: 1.20
     command: ["./scripts/test_e2e.sh"]
   azurite:
     image: arafato/azurite:2.6.5

go.mod

@@ -1,6 +1,6 @@
 module github.com/gomods/athens
 
-go 1.19
+go 1.20
 
 require (
 	cloud.google.com/go/storage v1.20.0

scripts/build-image/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.19-bullseye
+FROM golang:1.20-bullseye
 
 WORKDIR /tmp