Enable MemberImportVisibility check on all targets #12

Job	Run time
Cxx interop / Construct Cxx interop matrix	2s
Unit tests / Construct unit test matrix	3s
Soundness / API breakage check	3m 28s
Soundness / Documentation check	2m 33s
Soundness / Broken symlinks check	5s
Soundness / Format check	30s
Soundness / License headers check	3s
Soundness / Shell check	31s
Soundness / Unacceptable language check	3s
Soundness / YAML lint check	4s
Soundness / Python lint check	7s
Unit tests / Unit tests / Linux (5.9)	1m 56s
Unit tests / Unit tests / Linux (5.10)	1m 56s
Unit tests / Unit tests / Linux (6.0)	2m 14s
Unit tests / Unit tests / Linux (nightly-6.0)	2m 39s
Unit tests / Unit tests / Linux (nightly-main)	2m 41s
Cxx interop / Cxx interop / Linux (5.9)	2m 6s
Cxx interop / Cxx interop / Linux (5.10)	2m 9s
Cxx interop / Cxx interop / Linux (6.0)	2m 12s
Cxx interop / Cxx interop / Linux (nightly-6.0)	2m 46s
Cxx interop / Cxx interop / Linux (nightly-main)	2m 54s
	31m 2s

Provide feedback