task: update documentation for golang

[wtrocki]

Description

Updating documentation to cover golang version requirement

Reason

 Building atlas binary
go build -ldflags "-s -w -X github.com/mongodb/mongodb-atlas-cli/atlascli/internal/version.GitCommit=436cdc259407d225f622e5a407a43e43f4070d99 -X github.com/mongodb/mongodb-atlas-cli/atlascli/internal/version.Version=1.19.0-374-g436cdc259"  -o ./bin/atlas ./cmd/atlas
go: go.mod requires go >= 1.23.1 (running go 1.21.3; GOTOOLCHAIN=local)
make: *** [build] Error 1

Separate concern

Go.mod file does not use toolchain directive which can automatically request proper golang version for build purposes.
Do we have any reason to not define tooling directive?
Since I moved from Atlas CLI dev I noticed we no longer use adsf tools definitions.

[wtrocki]

Thank you, @blva Created #3340 as follows up to enable toolchain support.

[gssbzn]

Do we have any reason to not define tooling directive?

https://github.com/mongodb/mongodb-atlas-cli/pull/2779/files#r1530657881

[wtrocki]

Thank you for reference. I seen that PR and I did also removed adsf support for the repository:
https://github.com/mongodb/mongodb-atlas-cli/pull/2779/files#r1530658440

My understanding is that we want autoinstallation feature to be disabled.
That would mean this PR was correct (bumped required version that needs to be installed manually).
Closing toolchain PR that adds extra auto option as fallback to local

[gssbzn]

At the time I think we discussed offline (sorry we didn't capture it in the PR) given using both asdf and auto toolchain is an issue

• do we disable auto toolchain and prefer asdf
• do we disable asdf and prefer toolchain

And we decided to disable both and let devs decide what to use, in particular toolchain is disabled for the makefile because installation of the dev tools is wonky with the autotool detection

[wtrocki]

@gssbzn Thank you. All makes sense. I tried to look if we can add any information into contributing guide but we already mention manual installation for specific version and do not mention toolchain/asdf support anywhere. All good.