feat(gnovm/pkg/gnolang): add compile time guards to fail on 32-bit architectures

[odeke-em]

This change adds build constraints so as to panic if built for 32-bit architectures as it is a project wide decision not to support them.

This allows the mainnet launch without sweating trying to make a bunch of runtime changes for the gnovm.

Updates #3288

[Gno2D2]

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[kristovatlas]

Sounds reasonable. As the gno.land validator set will initially be limited, this probably isn't a pressing action.

[notJoon]

LGTM

remove: review/triage-pending flag

[aeddi]

The idea looks good to me, but please check the comments for some improvements.

[aeddi]

@leohhhn maybe you have a better idea of the right place(s) to add this info?

[thehowl]

definitely shouldn't go in README; maybe in pkg/gnolang/ readme.

Also we should update the goreleaser configuration to avoid 32bit targets.

[odeke-em]

Thank you @aeddi and @thehowl for the code reviews, I've made the updates, please take a look.