Separate and merge .h/.hpp files in duckdb #32476

Job	Run time
License Check and Audit Check (bans licenses sources)	46s
C/C++ (lint)	8s
License Check and Audit Check (advisories)	49s
validate-workflow-yaml	6s
Rust build (with tokio dispatcher)	49s
Rust (lint, no default)	2m 27s
lint-toml	7s
Rust build (wasm32 with default features)	59s
Check build with minimal dependencies	2m 9s
Python (test)	2m 29s
Check generated source files are up to date	45s
Rust build (default features)	2m 44s
C API test build	38s
Python (lint)	35s
C++ build	1m 21s
Java	2m 31s
Rust build (all-features)	2m 45s
Mirror DuckDB to R2 / Resolve DuckDB version and check R2	5s
WASM integration smoke test	5m 10s
DuckDB libraries available in R2	2s
Mirror DuckDB to R2 / Mirror DuckDB ${{ matrix.archive }} to R2	-1s
Rust (docs)	2m 37s
Rust tests (windows-x64)	8m 14s
Rust tests (linux-arm64)	4m 42s
SQL logic tests	1m 50s
Rust (lint)	2m 16s
	47m 3s

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