Remove const generic from arrays #2110

Job	Run time
build-benchmarks	2m 22s
check-features	20s
check-features (-F csv)	29s
check-features (-F flatgeobuf)	26s
check-features-with-external-dependencies (-F gdal -F gdal/bindgen)	36s
check-features (-F flatgeobuf_async)	37s
check-features-with-external-dependencies (-F geos)	21s
check-features (-F ipc_compression)	37s
check-features-with-external-dependencies (-F proj)	51s
check-features (-F parquet)	23s
Lint and Test	37s
check-features (-F parquet_async)	32s
check-features (-F parquet_compression)	38s
check-features (-F polylabel)	29s
check-features (-F postgis)	36s
check-features (-F rayon)	18s
	10m 12s

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