Avoid indexing the project if `configurationPreference` is `editorOnly` #41238

Job	Run time
cargo fmt	22s
cargo build (release)	0s
Determine changes	9s
mkdocs	2m 38s
pre-commit	3m 17s
python package	1m 34s
cargo clippy	1m 56s
cargo fuzz build	4m 19s
cargo build (msrv)	2m 2s
benchmarks	5m 23s
cargo shear	23s
cargo test (linux)	2m 2s
cargo test (linux, release)	4m 3s
cargo test (wasm)	1m 33s
cargo test (windows)	6m 36s
test scripts	1m 11s
formatter instabilities and black similarity	0s
ecosystem	2m 42s
test ruff-lsp	56s
fuzz parser	0s
	41m 6s

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