fix: ibc middleware verify sender address incorrectly (backport #769)

[mergify]

Description

Closes: #770

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Author Checklist

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I have...

• tackled an existing issue or discussed with a team member
• left instructions on how to review the changes
• targeted the main branch

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This is an automatic backport of pull request #769 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 91519e4 has failed:

On branch mergify/bp/release/v0.5.x/pr-769
Your branch is up to date with 'origin/release/v0.5.x'.

You are currently cherry-picking commit 91519e4.
  (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:   tests/integration/x/erc20/test_ibc_callback.go
	modified:   tests/integration/x/erc20/test_mint.go
	modified:   tests/integration/x/erc20/test_msg_server.go
	modified:   x/erc20/keeper/ibc_callbacks.go
	modified:   x/erc20/keeper/mint.go
	modified:   x/erc20/keeper/msg_server.go

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md

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