v0.9.2

Mostly changes to tests, but some behavior changes related to machine stepping.
This release deprecates the stepping field of the SevProduct in favor of the optional UInt32Value type. The new field is machine_stepping.

What's Changed

• Return after t.Skip() by @deeglaze in #86
• Remove debug println by @deeglaze in #87
• Actually skip skipped test by @deeglaze in #88
• Fix check tool product behavior on hardware by @deeglaze in #92
• Add DisableCertFetching verify_test mode by @deeglaze in #93

Full Changelog: v0.9.1...v0.9.2