✨ upgrade golang version to 1.18

[AlmogBaku]

Description:
This PR introduces Golang 1.18 support for Kubebuilder.
It makes Kubebuilder use go1.18 for both compiling the CLI and the scaffolded code.

For more information about this, see issue #2559

Motivation:
Closes #2559

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[k8s-ci-robot]

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: AlmogBaku
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[AlmogBaku]

/cc @AvineshTripathi

[k8s-triage-robot]

Unknown CLA label state. Rechecking for CLA labels.

Send feedback to sig-contributor-experience at kubernetes/community.

/check-cla
/easycla

[camilamacedo86]

/ok-to-test

[AlmogBaku]

This PR to the test-infra should upgrade prow to use golang 1.18 for our tests:
kubernetes/test-infra#25775

[camilamacedo86]

Just a few nits for we are able to get this one merged

a) Could you please update the PR title for :sparkles: upgrade Go version to 1.18 (adds supports to go 1.18) - Done
b) ensure that all plugins use golang 1.18 ( we are not updating go/v2 see (#2571
c) Could you revert the min go version forced by the CLI and ensure the same values for go/v2?
d) By the latest could we update the quick start after deep thought, I think we do not need to have the go version for each release and we should keep the info regards the latest one only, so go version >= 1.18 wdyt? Then we close with this PR this one #2548 too? We do not track in the docs the info/changes for each release made so that makes no sense we have the go version per release.

[camilamacedo86]

Please, see that we need to do a little bit more here to get this one merged
Could you please try to address the commands/suggestions?

IF you have doubts feel free to ping me in the slack.

[AlmogBaku]

Hey all,
I'm trying to understand where this PR stand, and why it's blocked:

Please comment here on your notes, and let's take a call what are the next action items.
@joelanford @camilamacedo86

[AlmogBaku]

Hi all,
Is there anything left before merging this?
@camilamacedo86 @joelanford @AvineshTripathi

[k8s-ci-robot]

@AlmogBaku: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-kubebuilder-test	e560137	link	true	/test pull-kubebuilder-test

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[camilamacedo86]

@AlmogBaku,

The issue was updated to clarify all that was discussed and what we will need to do to achieve this goal. See: #2561

Thank you for working on that and helping us to identify the needs.

I think we will need to discuss few points but I will not block the pr

[camilamacedo86]

@AlmogBaku,

Again, thank you for your terrific work 🥇 and help us identify what we will need to do to accomplish this goal.
However, we checked that we will need to:

a) split the changes between CLI and go/v3 ( scaffold )
b) also we will need to move forward with other updates and changes along with

In this way, wdyt about we close this one and then work on the new PRs?

/hold

[k8s-ci-robot]

@AlmogBaku: PR needs rebase.

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