Daniel Bradley 1251ad4f94 Upgrade upgrade test to use pulumitest (#490) ...

We're deprecating providertest.NewProviderTest, so use the new
pulumitest based approach instead.

- Update test code to use PreviewProviderUpgrade.
- Use provider attachment instead of the bin directory.
- Rename state.json to stack.json & let the first run migrate the stack
to a stable, non-machine dependent name.

2025-03-18 08:41:40 +00:00

..

TestProviderUpgrade

Upgrade upgrade test to use pulumitest (#490)

2025-03-18 08:41:40 +00:00