Allow windows-sys up to 0.61, and use cargo-minimal-versions to validate

[dpaoliello]

windows-sys didn't make any breaking changes in 0.60 or 0.61 that affect seize, so permit all versions from 0.59-0.61 to be used.

This change also adds tests via cargo-minimal-versions to ensure that the crate still works correctly with minimal versions of its dependencies.

Also had to bump criterion to 0.3.6 from 0.3.5, otherwise minimal-versions would pull in two versions of winapi, which then causes issues.

[ibraheemdev]

Thanks for the PR. I would prefer to update to 0.61 directly, I don't see a need to maintain compatibility with older versions, given that it's an internal dependency.

[dpaoliello]

given that it's an internal dependency

I'm not sure what you mean: this isn't a dev-dependency, so anyone relying on seize will be forced to 0.61 even if they have 0.59 or 0.60 already in their graph.

[ibraheemdev]

I mean that it's not part of the public facing API. I suppose it's fine to maintain compatibility with older versions as long as we test against them in CI. Thanks!