Update to Go 1.16 and enable darwin/arm64 builds

[gonzolino]

Update to go 1.16.

Since go 1.16 adds support for darwin/arm64 this PR will make it possible to
run this provider on ARM-based Macs.

See https://golang.org/doc/go1.16#darwin for the go changelog regarding this
change.

[gonzolino]

@nbering It would be nice if you could have a look at this PR, since this is currently blocking the provider from being used on M1 macs :)

[martin-1983]

@nbering Would also appreciate if you could have a look at this PR.

[armenr]

@nbering - Please, please can we get this merged? This is becoming show-stopper-level bad for our org. :-(

[armenr]

@gonzolino - is there any way we can temporarily point our terraform/terragrunt configs directly to your repo, where the m1 builds are supported, until @nbering sees this/merges this?

I've tried 12 permutations of how to reference a module directly by git...none seem to work, and I don't get how the terraform documentation isn't clearer about it. I'm sure the mistake/error is mine, but I've all but given up hope.

[gonzolino]

@armenr I don't think that you can point terraform directly to my repo. I would need to create a release on https://registry.terraform.io with my fork.
While I could create such a release, I would be happier if @nbering would merge this PR. I do not really have the capacity to maintain a fork of this provider.

I just saw that @nbering merged a PR 26 days ago. So maybe he will come back and merge this PR, too :)

[armenr]

I recommend this:

https://kreuzwerker.de/en/post/use-m1-terraform-provider-helper-to-compile-terraform-providers-for-mac-m1

[Termina1]

@nbering would be very grateful if you could merge this

[bLuka]

Hello, bumping. I came accross the issue, it could be great to merge this please :)

[armenr]

It's been 3/4 of a year since I first had this problem, and found this issue.

For anyone else who lands here, I just want to repeat that this tool helps solves the problem, and is great for anyone running into issues with providers that are unmaintained or old (not ARM-friendly) -->

https://github.com/kreuzwerker/m1-terraform-provider-helper