Problem: ibc 8.3.x is not used

[mmsqe]

👮🏻👮🏻👮🏻 !!!! REFERENCE THE PROBLEM YOUR ARE SOLVING IN THE PR TITLE AND DESCRIBE YOUR SOLUTION HERE !!!! DO NOT FORGET !!!! 👮🏻👮🏻👮🏻

PR Checklist:

• Have you read the CONTRIBUTING.md?
• Does your PR follow the C4 patch requirements?
• Have you rebased your work on top of the latest master?
• Have you checked your code compiles? (make)
• Have you included tests for any non-trivial functionality?
• Have you checked your code passes the unit tests? (make test)
• Have you checked your code formatting is correct? (go fmt)
• Have you checked your basic code style is fine? (golangci-lint run)
• If you added any dependencies, have you checked they do not contain any known vulnerabilities? (go list -json -m all | nancy sleuth)
• If your changes affect the client infrastructure, have you run the integration test?
• If your changes affect public APIs, does your PR follow the C4 evolution of public contracts?
• If your code changes public APIs, have you incremented the crate version numbers and documented your changes in the CHANGELOG.md?
• If you are contributing for the first time, please read the agreement in CONTRIBUTING.md now and add a comment to this pull request stating that your PR is in accordance with the Developer's Certificate of Origin.

Thank you for your code, it's appreciated! :)

[codecov]

Codecov Report

Attention: Patch coverage is 40.00000% with 3 lines in your changes missing coverage. Please review.

Project coverage is 36.55%. Comparing base (5304924) to head (35fa9f1).

Files	Patch %	Lines
app/upgrades.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1068      +/-   ##
==========================================
+ Coverage   34.13%   36.55%   +2.41%     
==========================================
  Files         120      101      -19     
  Lines       16326    14350    -1976     
==========================================
- Hits         5573     5245     -328     
+ Misses       9658     8158    -1500     
+ Partials     1095      947     -148     

Flag	Coverage Δ
integration_tests	25.79% <40.00%> (+2.24%)	⬆️
integration_tests_byzantine	11.27% <40.00%> (+0.28%)	⬆️
integration_tests_gov	11.54% <40.00%> (+0.30%)	⬆️
integration_tests_grpc	11.54% <40.00%> (+0.32%)	⬆️
integration_tests_ibc	27.52% <40.00%> (-0.71%)	⬇️
integration_tests_ledger	11.53% <40.00%> (+0.31%)	⬆️
integration_tests_slow	11.53% <40.00%> (+0.31%)	⬆️
integration_tests_solomachine	11.32% <40.00%> (+0.29%)	⬆️
integration_tests_upgrade	?
unit_tests	11.86% <40.00%> (?)

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