chore: use Denom type in transfer/simulation.

[DimitrisJim]

Description

still unsure why we need this but updated to use new Denom type.

closes: #XXXX

---

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[crodriguezvega]

Have you tried to run the simulation locally?

[colin-axner]

Have you tried to run the simulation locally?

I would be in favor of adding the sims to our CI just so that we catch any issues before downstream users

[sonarqubecloud]

Quality Gate passed for 'ibc-go'

Issues
11 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[colin-axner]

opened #6590