fix: validate unsigned AVX2 take indices #6601

Job	Run time
Rust/C++ FFI tests (asan)	2m 10s
Rust tests (tsan)	6m 43s
C++ API (coverage)	1m 3s
Rust tests (asan)	6m 59s
Rust/C++ FFI tests (tsan)	1m 57s
Rust tests (miri)	1m 36s
Mirror DuckDB to R2 / Resolve DuckDB version and check R2	6s
Mirror DuckDB to R2 / Mirror DuckDB ${{ matrix.archive }} to R2	0s
DuckDB libraries available in R2	2s
Rust tests (coverage) (tests)	6m 48s
	27m 24s

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