Minor: Improve error handling in sqllogictest runner #21151

Job	Run time
Check cargo fmt	40s
build with wasm-pack	1m 58s
cargo check	2m 35s
cargo test (mac)	22m 35s
Verify MSRV	6m 23s
Verify Vendored Code	37s
cargo test (win64)	26m 50s
cargo test datafusion-cli (amd64)	2m 56s
cargo test (amd64)	9m 10s
clippy	4m 17s
cargo test doc (amd64)	9m 21s
cargo doc	3m 5s
cargo examples (amd64)	6m 41s
verify benchmark results (amd64)	9m 43s
Run sqllogictest with Postgres runner	3m 4s
check Cargo.toml formatting	1m 17s
check configs.md is up-to-date	2m 12s
cargo test hash collisions (amd64)	8m 59s
cargo test pyarrow (amd64)	2m 15s
	2h 4m 38s

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