[native_assets_builder] Don't pass in the whole environment #1003

Job	Run time
build (ubuntu, stable, native_assets_builder, false)	5m 14s
build (ubuntu, stable, native_assets_cli, false)	2m 13s
build (ubuntu, stable, native_toolchain_c, false)	1m 45s
build (ubuntu, dev, native_assets_builder, false)	5m 45s
build (ubuntu, dev, native_assets_cli, false)	2m 26s
build (ubuntu, dev, native_toolchain_c, false)	1m 53s
build (macos, stable, native_assets_builder, false)	5m 22s
build (macos, stable, native_assets_cli, false)	1m 22s
build (macos, stable, native_toolchain_c, false)	2m 10s
build (macos, dev, native_assets_builder, false)	6m 15s
build (macos, dev, native_assets_cli, false)	1m 52s
build (macos, dev, native_toolchain_c, false)	1m 27s
build (windows, stable, native_assets_builder, false)	7m 44s
build (windows, stable, native_assets_cli, false)	2m 53s
build (windows, stable, native_toolchain_c, false)	4m 9s
build (windows, dev, native_assets_builder, false)	8m 6s
build (windows, dev, native_assets_cli, false)	3m 14s
build (windows, dev, native_toolchain_c, false)	4m 32s
coverage-finished	2s
	1h 8m 24s

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