fix: replace IsEqual with Equal (backport #1314)

[mergify]

Description

closes: #XXXX

cherry-pick: cosmos/cosmos-sdk#14739

Motivation and context

How has this been tested?

Screenshots (if appropriate):

Checklist:

• I followed the contributing guidelines and code of conduct.
• I have added a relevant changelog to CHANGELOG.md
• I have added tests to cover my changes.
• I have updated the documentation accordingly.
• I have updated API documentation client/docs/swagger-ui/swagger.yaml

---

This is an automatic backport of pull request #1314 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 143a763 has failed:

On branch mergify/bp/release/v0.48.x/pr-1314
Your branch is up to date with 'origin/release/v0.48.x'.

You are currently cherry-picking commit 143a76304.
  (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:   simapp/test_helpers.go
	modified:   types/coin.go
	modified:   types/coin_test.go
	modified:   types/dec_coin.go
	modified:   types/dec_coin_test.go
	modified:   x/auth/legacy/v043/store_test.go
	modified:   x/auth/vesting/types/vesting_account.go
	modified:   x/auth/vesting/types/vesting_account_test.go
	modified:   x/bank/keeper/genesis.go
	modified:   x/bank/keeper/grpc_query_test.go
	modified:   x/bank/keeper/invariants.go
	modified:   x/bank/keeper/querier_test.go
	modified:   x/bank/types/genesis.go
	modified:   x/bank/types/msgs.go
	modified:   x/distribution/keeper/delegation.go
	modified:   x/distribution/keeper/genesis.go
	modified:   x/distribution/keeper/invariants.go
	modified:   x/foundation/keeper/internal/invariants.go
	modified:   x/gov/abci_test.go
	modified:   x/gov/genesis.go
	modified:   x/gov/keeper/deposit_test.go
	modified:   x/gov/keeper/invariants.go
	modified:   x/gov/types/params.go
	modified:   x/mint/types/minter_test.go
	modified:   x/staking/genesis.go
	modified:   x/staking/types/msg_test.go

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/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[codecov]

Codecov Report

Attention: Patch coverage is 65.00000% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 69.78%. Comparing base (1f8e902) to head (9ec42c1).
Report is 3 commits behind head on release/v0.48.x.

Additional details and impacted files

@@               Coverage Diff                @@
##           release/v0.48.x    #1317   +/-   ##
================================================
  Coverage            69.78%   69.78%           
================================================
  Files                  646      646           
  Lines                67507    67522   +15     
================================================
+ Hits                 47109    47122   +13     
- Misses               18212    18215    +3     
+ Partials              2186     2185    -1     

Files	Coverage Δ
types/coin.go	94.56% <100.00%> (-0.03%)	⬇️
x/auth/vesting/types/vesting_account.go	87.18% <100.00%> (ø)
x/bank/keeper/genesis.go	86.66% <100.00%> (ø)
x/bank/keeper/invariants.go	60.00% <100.00%> (ø)
x/bank/types/msgs.go	98.01% <100.00%> (ø)
x/distribution/keeper/invariants.go	54.46% <100.00%> (ø)
x/foundation/keeper/internal/invariants.go	100.00% <100.00%> (ø)
x/gov/types/params.go	5.94% <100.00%> (ø)
x/staking/genesis.go	59.23% <100.00%> (ø)
simapp/test_helpers.go	9.96% <0.00%> (ø)
... and 5 more

... and 4 files with indirect coverage changes