New Generation Instance Types

[mrswats]

I was creating a new stack and I noticed there are not yet the new generation of AMD Machines (c6a.large, etc...) and I was wondering if they will be added soon or if they have to be added (I would gladly open a new PR for this). Same with the cache.t3.small collection.

Thanks!

[PatMyron]

Been thinking for a while constants shouldn't be hardcoded in troposphere: #1558 (comment) (especially instance types)

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Luckily, troposphere's hardcoded constants don't need to be used and you can hardcode any new instance type even if troposphere hasn't explicitly included it, so it should be possible to workaround with that

[mrswats]

Many thanks @PatMyron! All clear. Cheers 🍻