Switch to `compression.zstd`, `backports.zstd` instead of `zstandard`

[dholth]

Checklist

• I added a descriptive title
• I searched open requests and couldn't find a duplicate

What is the idea?

Use builtin library instead.

Why is this needed?

zstandard is now an extra dependency with uncertain maintenance status.

What should happen?

No response

Additional Context

No response