Refactor ICS02 update client tests to utilize the testing approach used by ICS03 connection tests

[seanchen1991]

Summary

The ICS03 connection tests utilize a custom testing configuration approach that defines a Ctx enum that enumerates the different possible context variants that the tests might make use of. For example, see https://github.com/cosmos/ibc-rs/blob/main/ibc-testkit/tests/core/ics03_connection/conn_open_ack.rs.

This is a much more streamlined way to configure tests with different context and message types than the approach prescribed by rstest. We should refactor the update client tests to follow a similar approach and framework.

[gr4yha7]

@seanchen1991 can I take this?

[Farhad-Shabani]

@seanchen1991 can I take this?

Hey @gr4yha7! Thank you for stepping up to help with this issue. We're currently in the process of refactoring the ibc-testkit (#677), making progress in the feat/refactor-testkit branch. Since the changes for this issue will be extensive and could potentially lead to a lot of conflicts, we'd like to wrap up that work first. Once everything is settled, we'll give you the heads-up. Does that sound good to you? Thanks again for your willingness to contribute!
CC @rnbguy

[gr4yha7]

@seanchen1991 can I take this?

Hey @gr4yha7! Thank you for stepping up to help with this issue. We're currently in the process of refactoring the ibc-testkit (#677), making progress in the feat/refactor-testkit branch. Since the changes for this issue will be extensive and could potentially lead to a lot of conflicts, we'd like to wrap up that work first. Once everything is settled, we'll give you the heads-up. Does that sound good to you? Thanks again for your willingness to contribute! CC @rnbguy

Thanks @Farhad-Shabani. 👍