fix(distribution): replace cosmos sdk fork with official version (#1173)

[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! :)

[socket-security]

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	golang/​github.com/​cosmos/​cosmos-sdk@​v0.50.14

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[codecov]

Codecov Report

Attention: Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 34.20%. Comparing base (2e74b96) to head (0b30cf6).
Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
app/upgrades.go	20.00%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1174      +/-   ##
==========================================
+ Coverage   31.80%   34.20%   +2.40%     
==========================================
  Files          92      100       +8     
  Lines       17134    17437     +303     
==========================================
+ Hits         5449     5964     +515     
+ Misses      10741    10519     -222     
- Partials      944      954      +10     

Flag	Coverage Δ
integration_tests	24.01% <20.00%> (-0.01%)	⬇️
integration_tests_byzantine	11.13% <20.00%> (+<0.01%)	⬆️
integration_tests_gov	11.38% <20.00%> (+<0.01%)	⬆️
integration_tests_grpc	11.38% <20.00%> (+<0.01%)	⬆️
integration_tests_ibc	26.60% <20.00%> (-0.01%)	⬇️
integration_tests_ledger	11.36% <20.00%> (+<0.01%)	⬆️
integration_tests_slow	11.36% <20.00%> (+<0.01%)	⬆️
integration_tests_solomachine	11.17% <20.00%> (+<0.01%)	⬆️
integration_tests_upgrade	11.38% <20.00%> (+<0.01%)	⬆️
unit_tests	11.83% <20.00%> (?)

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