Implement OnChanUpgradeAck on Controller Chain for interchain-accounts

[chatton]

Description

(this one is also r4r after OnChanUpgradeTry for host is merged)

Review after #5140 and #5142

closes: #5145

ref: the spec

---

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• Targeted PR against correct branch (see CONTRIBUTING.md).
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Code follows the module structure standards and Go style guide.
• Wrote unit and integration tests.
• Updated relevant documentation (docs/) or specification (x/<module>/spec/).
• Added relevant godoc comments.
• Provide a commit message to be used for the changelog entry in the PR description for review.
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• Review Codecov Report in the comment section below once CI passes.

[damiannolan]

one requested change, otherwise lgtm

[damiannolan]

Thanks @charleenfei for pushing this over the line! 🚀 And @chatton for getting this started!

[damiannolan]

This PR will need type assertions on the UpgradeableModule interface to route callbacks after #5375.

See here for example

If this is merged first I can update my PR.

[crodriguezvega]

Looks great! Thank you again, @chatton and @charleenfei.

[codecov-commenter]

Codecov Report

Merging #5160 (05f7685) into 04-channel-upgrades (8865e29) will decrease coverage by 0.08%.
The diff coverage is 55.31%.

Additional details and impacted files

@@                   Coverage Diff                   @@
##           04-channel-upgrades    #5160      +/-   ##
=======================================================
- Coverage                80.45%   80.37%   -0.08%     
=======================================================
  Files                      197      197              
  Lines                    14927    14973      +46     
=======================================================
+ Hits                     12009    12035      +26     
- Misses                    2455     2474      +19     
- Partials                   463      464       +1     

Files	Coverage Δ
...interchain-accounts/controller/keeper/handshake.go	84.67% <89.65%> (+1.51%)	⬆️
...7-interchain-accounts/controller/ibc_middleware.go	51.04% <0.00%> (-6.89%)	⬇️