impr(claims): Retain claims records when all actions have been completed (backport #516)

[mergify]

This is an automatic backport of pull request #516 done by Mergify.
Cherry-pick of 0d16f15 has failed:

On branch mergify/bp/release/v3.0.x/pr-516
Your branch is up to date with 'origin/release/v3.0.x'.

You are currently cherry-picking commit 0d16f15.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   x/claims/keeper/claim.go
	modified:   x/claims/keeper/claim_test.go
	modified:   x/claims/keeper/ibc_callbacks_test.go
	modified:   x/claims/spec/04_hooks.md

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   CHANGELOG.md

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[codecov]

Codecov Report

Merging #517 (f483da4) into release/v3.0.x (cf58fcc) will decrease coverage by 0.00%.
The diff coverage is 100.00%.

@@                Coverage Diff                 @@
##           release/v3.0.x     #517      +/-   ##
==================================================
- Coverage           82.05%   82.04%   -0.01%     
==================================================
  Files                 105      105              
  Lines                5806     5803       -3     
==================================================
- Hits                 4764     4761       -3     
  Misses                891      891              
  Partials              151      151              

Impacted Files	Coverage Δ
x/claims/keeper/claim.go	97.87% <100.00%> (-0.05%)	⬇️