[native_assets_cli] Validate that paths are absolute in `Input` and `Output` #1237

Job	Run time
build (ubuntu, stable, native_assets_builder, false)	6m 6s
build (ubuntu, stable, native_assets_cli, false)	2m 47s
build (ubuntu, stable, native_toolchain_c, false)	2m 26s
build (ubuntu, dev, native_assets_builder, false)	6m 27s
build (ubuntu, dev, native_assets_cli, false)	2m 45s
build (ubuntu, dev, native_toolchain_c, false)	2m 4s
build (macos, stable, native_assets_builder, false)	4m 53s
build (macos, stable, native_assets_cli, false)	1m 13s
build (macos, stable, native_toolchain_c, false)	2m 6s
build (macos, dev, native_assets_builder, false)	8m 57s
build (macos, dev, native_assets_cli, false)	1m 21s
build (macos, dev, native_toolchain_c, false)	1m 43s
build (windows, stable, native_assets_builder, false)	9m 16s
build (windows, stable, native_assets_cli, false)	2m 39s
build (windows, stable, native_toolchain_c, false)	5m 20s
build (windows, dev, native_assets_builder, false)	9m 33s
build (windows, dev, native_assets_cli, false)	2m 40s
build (windows, dev, native_toolchain_c, false)	6m 2s
coverage-finished	2s
	1h 18m 20s

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