Coverage.GetStatsForAllCoveredMethods() returns no CoveredMethodStats for packages added from tarball

Steps to reproduce:

1. Create new unity project
2. Remove Code Coverage package
3. Add com.unity.repro-coverage-issue-1.2.0.tgz package (from tarball) included to this ticket
4. Click Test/Enable Coverage menu item to enable coverage tracking
5. Click Test/Reproduce issue menu item to execute a method and print coverage information that was generated

Notice error in console:

"GetStatsForAllCoveredMethods() returned no CoveredMethodStats"

Expected result: It should instead print coverage information for AMethod() that was executed before GetStartsForAllCoveredMethods() call.

Reproduced with: 2023.1.0a17

Not reproducible: 2023.1.0a16