docs: add ibc migration docs in migration docs (#10438) (#10440)

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## Description

Closes: #10398

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- [ ] 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
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
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- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] 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 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)

(cherry picked from commit d6699ed)

Co-authored-by: atheeshp <[email protected]>

docs/migrations/chain-upgrade-guide-044.md

@@ -18,6 +18,8 @@ You must upgrade to Stargate v0.42 before upgrading to v0.44. If you have not do
 
 Cosmos SDK v0.44 introduces a new way of handling chain upgrades that no longer requires exporting state to JSON, making the necessary changes, and then creating a new chain with the modified JSON as the new genesis file.
 
+The IBC module for the Cosmos SDK has moved to its [own repository](https://github.com/cosmos/ibc-go) for v0.42 and later versions. If you are using IBC, make sure to also go through the [IBC migration docs](https://github.com/cosmos/ibc-go/blob/main/docs/migrations/ibc-migration-043.md).
+
 Instead of starting a new chain, the upgrade binary will read the existing database and perform in-place store migrations. This new way of handling chain upgrades can be used alongside [Cosmovisor](../run-node/cosmovisor.html) to make the upgrade process seamless.
 
 ## In-Place Store Migrations