Set channel version at the application level

[seanchen1991]

Closes: #3213

Description

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PR author checklist:

• Added changelog entry, using unclog.
• Added tests: integration (for Hermes) or unit/mock tests (for modules).
• Linked to GitHub issue.
• Updated code comments and documentation (e.g., docs/).
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Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).

[romac]

Perhaps we should actually keep the counterparty version set in the OpenTry message and see if that fixes some tests.

The ordered channel test is apparently using an old version of ibc-go (v3) which seems to require the version at the open init step. We should see if we can update it to a newer version.

[romac]

Nevermind, looks like pretty much all tests are failing, even on Gaia 8. Maybe we should just drop this PR then, or at least clarify the expected behavior with the ibc-go team.

[ljoss17]

It seems that the version which is deprecated is the one in the ChannelEnd in the MsgChannelOpenTry https://github.com/cosmos/ibc-go/blob/v7.0.0/proto/ibc/core/channel/v1/tx.proto#L84.
I restored the the couterparty_version as it is still needed. This should fix the tests

[romac]

Looks like gaia8 (and likely other chains using the same ibc-go version) still expects a version to be set at chan open init, so perhaps we should keep doing that as well.

[romac]

Given the resulting change I wonder if we shouldn't just drop the PR altogether? Do we foresee any issues with setting the try version to its init counterpart? If not then let's drop it.

[ljoss17]

I agree, the deprecated version in the Channel field doesn't seem to bring much to Hermes. I would be keen to drop this PR