Update swc_core to v0.86.81 (vercel#58517)

### What?

Update swc crates.

Diff:
swc-project/swc@09b3003...c566b73

### Why?

To fix bugs, and improve minification.

### How?

turbopack counterpart: vercel/turbo#6472

- Closes PACK-1972

- Closes vercel#30802

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Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>