Update to macOS14 runner image #34137

Job	Run time
cargo fmt	16s
Determine changes	9s
mkdocs	2m 38s
pre-commit	39s
python package	1m 13s
cargo build (msrv)	3m 26s
benchmarks	4m 48s
cargo clippy	1m 51s
cargo build (release)	4m 58s
cargo fuzz	4m 26s
cargo shear	21s
cargo test (linux)	4m 19s
cargo test (wasm)	1m 34s
cargo test (windows)	8m 20s
test scripts	56s
formatter instabilities and black similarity	0s
test ruff-lsp	14s
ecosystem	21s
Fuzz the parser	0s
	40m 29s

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