Revert "feat: Update `swc_core` to `v9.0.0` (#73696)" #20286

Job	Run time
publish-turbopack-npm-packages	0s
deploy-target	8s
build-wasm (web)	3m 27s
build-wasm (nodejs)	3m 26s
build	2m 18s
stable - x86_64-unknown-linux-gnu - node@16	4m 55s
Deploy examples	0s
Deploy preview tarball	1m 54s
Potentially publish release	0s
Upload Turbopack Bytesize metrics to Datadog	0s
Release Stats	0s
	16m 8s

Provide feedback