Perf: Skip string normalization when possible #25099

Job	Run time
cargo fmt	15s
pre-commit	48s
Determine changes	8s
mkdocs	2m 9s
python package	1m 12s
cargo fuzz	5m 3s
benchmarks	4m 31s
cargo test (linux)	3m 53s
cargo clippy	1m 51s
cargo test (windows)	6m 19s
cargo test (wasm)	1m 14s
cargo udeps	2m 1s
formatter instabilities and black similarity	3m 39s
test scripts	55s
test ruff-lsp	15s
ecosystem	5m 48s
	40m 1s

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