✨ Add windows amd64 target to clusterctl

[cpanato]

What this PR does / why we need it:

• chore: add trimpath flag to make build more reproducible
• feature: add windows amd64 target for clusterctl

I don't have a windows machine, but I spun one in the cloud and did a quick test and worked fine

/assign @fabriziopandini

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

[sbueringer]

Change looks good to me. Not sure why verify failed, looks unrelated

/retest

[cpanato]

Change looks good to me. Not sure why verify failed, looks unrelated

/retest

tried the main branch and failed as well for me

[sbueringer]

Change looks good to me. Not sure why verify failed, looks unrelated
/retest

tried the main branch and failed as well for me

I've run make generate-go-conversions-core on the current main branch and on this PR and it worked for me. Looks like it also works on other PRs. That's really weird.

[sbueringer]

/test pull-cluster-api-verify-main

[sbueringer]

I've also tested this PR merged into main to reproduce ~ what Prow is testing. Still worked.

Can you try to rebase on top of current main (I know it's already pretty close), just to see if that makes any difference

[cpanato]

I've also tested this PR merged into main to reproduce ~ what Prow is testing. Still worked.

Can you try to rebase on top of current main (I know it's already pretty close), just to see if that makes any difference

same error :/

[sbueringer]

Can you please make the same adjustments in test/infrastructure/docker/{Dockerfile,Makefile}?

[sbueringer]

P.S. I'll fix the golangci-lint issue via #5660

[cpanato]

let me rebase

[sbueringer]

Thx!
/lgtm

[fabriziopandini]

/retest

[sbueringer]

/lgtm

[fabriziopandini]

/lgtm
/approve

[k8s-ci-robot]

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