Resolve SendableMetatype issues #200

Job	Run time
Unit tests / Construct unit test matrix	5s
Static SDK / Construct Static SDK matrix	5s
Cxx interop / Construct Cxx interop matrix	3s
Release builds / Construct release build matrix	3s
Soundness / Format check	40s
Soundness / Python lint check	7s
Soundness / Shell check	37s
Soundness / Broken symlinks check	6s
Soundness / YAML lint check	4s
Soundness / Documentation check	3m 17s
Soundness / API breakage check	5m 2s
Soundness / License headers check	6s
Soundness / Unacceptable language check	6s
Cxx interop / Cxx interop / Linux (6.2)	2m 57s
Cxx interop / Cxx interop / Linux (5.10)	2m 40s
Cxx interop / Cxx interop / Linux (6.0)	2m 58s
Cxx interop / Cxx interop / Linux (nightly-main)	4m 13s
Cxx interop / Cxx interop / Linux (nightly-next)	3m 55s
Cxx interop / Cxx interop / Linux (6.1)	3m 5s
Release builds / Release builds / Linux (6.2)	3m 53s
Release builds / Release builds / Linux (5.10)	3m 40s
Release builds / Release builds / Linux (6.1)	4m 1s
Release builds / Release builds / Linux (nightly-main)	4m 57s
Release builds / Release builds / Linux (nightly-next)	5m 6s
Release builds / Release builds / Linux (6.0)	4m 0s
Unit tests / Unit tests / Linux (6.0)	5m 32s
Unit tests / Unit tests / Linux (6.2)	5m 12s
Unit tests / Unit tests / Linux (nightly-main)	6m 35s
Unit tests / Unit tests / Linux (nightly-next)	6m 20s
Unit tests / Unit tests / Linux (6.1)	5m 27s
Unit tests / Unit tests / Linux (5.10)	5m 3s
Static SDK / Static SDK / Linux (main Jammy)	4m 25s
Static SDK / Static SDK / Linux (latest-release Jammy)	3m 50s
	1h 38m 10s

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