fix(cpp): multiversion package support #3362

Job	Run time
Crate Unit Tests	2m 38s
Build wit-bindgen (aarch64-macos, macos-latest, aarch64-apple-darwin)	4m 15s
Build wit-bindgen (x86_64-macos, macos-latest, x86_64-apple-darwin)	2m 29s
Build wit-bindgen (aarch64-linux, ubuntu-latest, aarch64-unknown-linux-gnu)	3m 28s
Rustfmt	9s
Build wit-bindgen (x86_64-linux, ubuntu-latest)	2m 50s
Test (ubuntu-latest, rust)	2m 44s
Test Async (allowed to fail)	1m 29s
Test (macos-latest, c)	2m 25s
Test (ubuntu-latest, cpp)	3m 38s
Test (ubuntu-latest, c)	1m 56s
Test (windows-latest, csharp)	14m 48s
Build wit-bindgen (x86_64-windows, windows-latest)	5m 18s
Test (ubuntu-latest, csharp)	11m 8s
Test (macos-latest, cpp)	3m 41s
Test (macos-latest, rust)	2m 41s
Test (windows-latest, c)	4m 18s
Test (windows-latest, rust)	5m 46s
Check	2m 31s
Test (windows-latest, cpp)	6m 4s
verify-publish	2m 30s
Record the result of testing and building steps	2s
	1h 26m 48s

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