Cleaner casting #1890

Job	Run time
build-benchmarks	3m 43s
check-features	21s
Lint and Test	9m 4s
check-features (-F csv)	13s
check-features-with-external-dependencies (-F gdal -F gdal/bindgen)	39s
check-features (-F flatgeobuf)	27s
check-features (-F flatgeobuf_async)	33s
check-features (-F geozero)	23s
check-features-with-external-dependencies (-F geos)	18s
check-features (-F ipc_compression)	44s
check-features-with-external-dependencies (-F proj)	51s
check-features (-F parquet)	20s
check-features (-F parquet_async)	29s
check-features (-F parquet_compression)	31s
check-features (-F polylabel)	35s
check-features (-F postgis)	1m 24s
check-features (-F rayon)	17s
	20m 52s

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