chore: Small stylistic fixes to pointer casting

[robert3005]

Signed-off-by: Robert Kruszewski github@robertk.io

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.86%. Comparing base (3388245) to head (892f601).

Files with missing lines	Patch %	Lines
vortex-compute/src/take/slice/portable.rs	0.00%	3 Missing ⚠️
vortex-buffer/src/bit/view.rs	0.00%	1 Missing ⚠️
vortex-cuda/src/device_buffer.rs	0.00%	1 Missing ⚠️
vortex-duckdb/src/convert/vector.rs	0.00%	1 Missing ⚠️
vortex-duckdb/src/duckdb/table_filter.rs	0.00%	1 Missing ⚠️
vortex-ffi/src/file.rs	0.00%	1 Missing ⚠️

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