Add snapshot test for invoked integrationv2 tests

[goatgoose]

Problem:

While working on #5096, I found it difficult to determine if a change to the invalid_test_parameters() logic in the integrationv2 framework would result in changes to the tests that are run. It would be nice to have assurance that changes don't result in unintentionally reducing test coverage.

Solution:

We should consider snapshot testing the integrationv2 tests that are invoked for each libcrypto by committing the list of invoked tests into the repo and comparing this list to a new list generated in each PR. If these lists differ, the PR should fail until the committed list is updated. This will ensure that any changes to test coverage are acknowledged by the author and observable to reviewers.

[jmayclin]

Request: report at two levels

• individual test_*.py that was run
• test instances that were run.