refactor: add option to set bondDenom on simulations (cosmos#14529)

## Description




- Add new property `BondDenom` to `SimulationState` struct in `types/module/simulation.go`
- Changed the `x/modules/simulation/genesis.go` mostly to use the new property

---

### Author Checklist

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I have...

- [x] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [x] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/main/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
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- [x] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
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- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

state.go

@@ -183,6 +183,7 @@ func AppStateRandomizedFn(
 		Accounts:     accs,
 		InitialStake: initialStake,
 		NumBonded:    numInitiallyBonded,
+		BondDenom:    sdk.DefaultBondDenom,
 		GenTimestamp: genesisTimestamp,
 	}