refactor(turbopack): Use `ResolvedVc<T>` for struct fields in `turbopack-css` #47106

Job	Run time
Determine changes	9s
validate-docs-links	13s
build-native / build	3m 32s
build-next / build	41s
optimize-ci / Graphite CI Optimizer	9s
test unit (18) / build	3m 35s
test unit (20) / build	3m 24s
test devlow package	0s
ast-grep lint	13s
test cargo benches	0s
test next-swc wasi	0s
test next-swc wasm	0s
rustdoc check / build	2m 33s
rust check / build	1m 41s
test cargo unit / build	5m 22s
lint	0s
types and precompiled	0s
Run devlow benchmarks	0s
test turbopack dev	0s
test turbopack development integration	0s
Test new tests for flakes (dev)	0s
test turbopack production	0s
test turbopack production integration	0s
test dev	0s
Test new tests for flakes (prod)	0s
test integration	0s
test prod	0s
test firefox and safari	0s
test ppr dev	0s
test ppr integration	0s
test ppr prod	0s
Test new tests when deployed	0s
report test results to datadog	2s
thank you, next	1s
	21m 35s

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