self.upsample = Upsample1D

[kkj15dk]

What does this PR do?

I'm new to hugging face (and PR in general), will probably use diffusers for a project i'm working on, and stumbled upon this.
self.upsample was using the downsample class, not upsample. I guessing its a part of the library not many people use, so it wasn't caught.

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[yiyixuxu]

@kkj15dk welcome! and thanks for your contribution:) it's a good catch!