Add missing channel upgrade tests (backport #5502)

[mergify]

This is an automatic backport of pull request #5502 done by Mergify.
Cherry-pick of b2368fa has failed:

On branch mergify/bp/release/v8.1.x/pr-5502
Your branch is up to date with 'origin/release/v8.1.x'.

You are currently cherry-picking commit b2368fa2.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   modules/apps/transfer/ibc_module_test.go
	modified:   modules/core/04-channel/types/msgs_test.go
	modified:   modules/core/04-channel/types/params.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   modules/core/04-channel/types/msgs.go
	both modified:   modules/core/keeper/msg_server_test.go

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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