chore: change usage of deprecated module.NewManager in SimApps

[NisTun]

Description

closes: #7862

---

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• Wrote unit and integration tests.
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[gjermundgaraba]

@NisTun, can you take a look at the failing linting? You can run the linter with:
make lint (just make sure you have at least v1.62 of golangci-lint installed)

@technicallyty, can you take a quick look at the changes and see if they are correct=

[gjermundgaraba]

@NisTun, it looks like perhaps a CLI command got broken during this change. Can you look into that?
https://github.com/cosmos/ibc-go/actions/runs/12989065460/job/36245241734?pr=7886

[gjermundgaraba]

Looks good to me! Just want a quick approval from @technicallyty and this can be merged! :)

[technicallyty]

LGTM