feat: include `duckdb-rs` as a submodule #9542

Job	Run time
lint-toml	2m 14s
Python (lint)	4m 17s
Python (test)	7m 29s
Rust (docs)	4m 36s
validate-workflow-yaml	22s
Check build with minimal dependencies	6m 14s
Benchmark with Codspeed	4m 36s
Rust build (all-features)	9m 40s
License Check and Audit Check (advisories)	1m 10s
License Check and Audit Check (bans licenses sources)	55s
Rust build (default features)	9m 0s
Rust (lint)	14m 23s
Rust (tests)	11m 28s
Rust build (with tokio dispatcher)	8m 23s
miri	1m 46s
Check generated proto/fbs files are up to date	58s
wasm-integration	2m 35s
Rust build (with compio dispatcher)	9m 29s
Rust build (with tokio+compio dispatcher)	9m 21s
Rust build (wasm32 with default features)	4m 13s
	1h 53m 9s

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