Enable MemberImportVisibility check on all targets #196

Job	Run time
Compatibility test	31s
Unit tests / Construct unit test matrix	2s
Example packages / Windows (6.0)	2s
Example packages / Linux (5.9)	46s
Example packages / Windows (nightly-6.0)	2s
Example packages / Linux (5.10)	43s
Example packages / Windows (nightly-main)	2s
Integration test / Linux (5.9)	40s
Integration test / Windows (6.0)	2s
Example packages / Linux (6.0)	49s
Example packages / Linux (nightly-6.0)	47s
Integration test / Linux (5.10)	35s
Integration test / Linux (6.0)	49s
Example packages / Linux (nightly-main)	29s
Integration test / Windows (nightly-6.0)	2s
Integration test / Linux (nightly-6.0)	41s
Integration test / Windows (nightly-main)	2s
Integration test / Linux (nightly-main)	30s
Soundness / Documentation check	37s
Soundness / Unacceptable language check	2s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	1s
Soundness / Format check	37s
Soundness / License headers check	4s
Soundness / Shell check	32s
Soundness / Python lint check	3s
Soundness / YAML lint check	0s
Unit tests / Unit tests / Linux (5.9)	26s
Unit tests / Unit tests / Linux (5.10)	26s
Unit tests / Unit tests / Linux (6.0)	30s
Unit tests / Unit tests / Linux (nightly-6.0)	32s
	11m 24s

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