feat: include `duckdb-rs` as a submodule #9528

Job	Run time
lint-toml	2m 10s
validate-workflow-yaml	3s
Check build with minimal dependencies	1m 19s
Rust build (all-features)	10m 12s
Rust build (default features)	8m 35s
Python (test)	34s
Rust build (with tokio dispatcher)	9m 30s
Python (lint)	20s
Rust build (with compio dispatcher)	9m 26s
Rust (docs)	39s
Rust build (with tokio+compio dispatcher)	9m 6s
Rust build (wasm32 with default features)	3m 48s
Benchmark with Codspeed	26s
License Check and Audit Check (advisories)	30s
Rust (lint)	1m 17s
License Check and Audit Check (bans licenses sources)	32s
wasm-integration	2m 43s
Rust (tests)	2m 17s
Check generated proto/fbs files are up to date	32s
miri	48s
	1h 4m 47s

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