Add Coreum V4 upgrade alias for the v4 upgrade.

[dzmitryhil]

Description

Add Coreum V4 upgrade alias for the v4 upgrade.

Reviewers checklist:

• Try to write more meaningful comments with clear actions to be taken.
• Nit-picking should be unblocking. Focus on core issues.

Authors checklist

• Provide a concise and meaningful description
• Review the code yourself first, before making the PR.
• Annotate your PR in places that require explanation.
• Think and try to split the PR to smaller PR if it is big.

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This change is 

[masihyeganeh]

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @miladz68 and @ysv)

[masihyeganeh]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @miladz68 and @ysv)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.11%. Comparing base (75581f0) to head (95e38a3).
Report is 3 commits behind head on release-v4.

Additional details and impacted files

@@             Coverage Diff             @@
##           release-v4     #905   +/-   ##
===========================================
  Coverage       38.11%   38.11%           
===========================================
  Files             168      168           
  Lines           51789    51790    +1     
===========================================
+ Hits            19740    19741    +1     
  Misses          28482    28482           
  Partials         3567     3567           

Flag	Coverage Δ
coreum	34.09% <100.00%> (+<0.01%)	⬆️
coreum-integration-tests-modules	24.35% <100.00%> (+<0.01%)	⬆️

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[miladz68]

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @ysv)