chore: bump go to 1.22

Dockerfile

@@ -1,7 +1,7 @@
 ARG IMG_TAG=latest
 
 # Compile the atomoned binary
-FROM golang:1.21-alpine AS atomoned-builder
+FROM golang:1.22-alpine AS atomoned-builder
 WORKDIR /src/app/
 COPY go.mod go.sum* ./
 RUN go mod download

UPGRADING.md

@@ -1,3 +1,20 @@
-# Upgrade AtomOne
+# Upgrading AtomOne
 
 This guide provides instructions for upgrading to specific versions of AtomOne.
+
+## Go version bump
+
+AtomOne v2 build requires a more recent version of the Go compiler: 1.22.10. If
+you already have go installed but with an other version, you can install
+go1.22.10 with the following command:
+
+```sh
+$ go install golang.org/dl/go1.22.10@latest
+$ go1.22.10 download
+```
+
+Then you need to update some env variables to invoke the makefile commands of
+AtomOne. For example, to run `make build` :
+```
+$ GOROOT=$(go1.22.10 env GOROOT) PATH=$GOROOT/bin:$PATH make build
+```

contrib/Dockerfile.test

@@ -2,7 +2,7 @@
 # > docker build -t atomone .
 # > docker run -it -p 46657:46657 -p 46656:46656 -v ~/.atomone:/root/.atomone atomone atomoned init
 # > docker run -it -p 46657:46657 -p 46656:46656 -v ~/.atomone:/root/.atomone atomone atomoned start
-FROM golang:1.21-alpine AS build-env
+FROM golang:1.22-alpine AS build-env
 
 # Set up dependencies
 ENV PACKAGES curl make git libc-dev bash gcc linux-headers eudev-dev python3

contrib/devdeps/go.mod

@@ -1,6 +1,6 @@
 module github.com/atomone-hub/atomone/contrib/devdeps
 
-go 1.21
+go 1.22
 
 require (
 	github.com/golangci/golangci-lint v1.56.0

go.mod

@@ -1,6 +1,6 @@
 module github.com/atomone-hub/atomone
 
-go 1.21.13
+go 1.22.10
 
 require (
 	cosmossdk.io/api v0.3.1