Update Rust crate insta to v1.42.0 #38257

Job	Run time
Determine changes	13s
cargo build (release)	0s
cargo fmt	25s
mkdocs	3m 4s
pre-commit	3m 10s
python package	1m 28s
cargo clippy	2m 30s
cargo test (linux)	2m 36s
cargo test (linux, release)	3m 41s
cargo test (wasm)	2m 17s
cargo test (windows)	5m 48s
cargo build (msrv)	4m 38s
cargo fuzz build	5m 2s
test scripts	1m 9s
cargo shear	26s
formatter instabilities and black similarity	3m 23s
benchmarks	5m 46s
ecosystem	4m 0s
test ruff-lsp	44s
fuzz parser	5m 38s
	55m 58s

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