Bump ibc-go to v1.2.1-hooks

[thomas-nguy]

👮🏻👮🏻👮🏻 !!!! 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

Merging #162 (e113dd0) into main (3ea70c5) will increase coverage by 4.97%.
The diff coverage is 50.45%.

@@            Coverage Diff             @@
##             main     #162      +/-   ##
==========================================
+ Coverage   21.51%   26.48%   +4.97%     
==========================================
  Files          27       34       +7     
  Lines        1729     2420     +691     
==========================================
+ Hits          372      641     +269     
- Misses       1324     1731     +407     
- Partials       33       48      +15     

Impacted Files	Coverage Δ
app/prefix.go	0.00% <0.00%> (ø)
app/test_helpers.go	0.00% <0.00%> (ø)
x/cronos/keeper/gravity_hooks.go	0.00% <0.00%> (ø)
x/cronos/keeper/grpc_query.go	0.00% <0.00%> (ø)
x/cronos/keeper/msg_server.go	5.00% <0.00%> (-1.46%)	⬇️
x/cronos/module.go	59.64% <0.00%> (-2.17%)	⬇️
x/cronos/types/codec.go	0.00% <0.00%> (ø)
x/cronos/types/events.go	0.00% <ø> (ø)
x/cronos/types/proposal.go	11.11% <ø> (ø)
x/cronos/types/query.pb.gw.go	0.00% <ø> (ø)
... and 18 more

---

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[tomtau]

for reference, the diff: https://github.com/cosmos/ibc-go/compare/v1.2.1...crypto-org-chain:thomas/v1.2.1-hooks?expand=1