Bumps [github.com/decred/dcrd/dcrec/secp256k1/v4](https://github.com/decred/dcrd) from 4.1.0 to 4.2.0.
<details>
<summary>Commits</summary>
<ul>
<li><a href="bacf8444a8"><code>bacf844</code></a> secp256k1: Prepare v4.2.0.</li>
<li><a href="e0ad9b8687"><code>e0ad9b8</code></a> secp256k1: Update PrivKeyFromBytes comment.</li>
<li><a href="6c5b953d28"><code>6c5b953</code></a> secp256k1: Add GeneratePrivateKeyFromRand tests.</li>
<li><a href="bd0b82d0be"><code>bd0b82d</code></a> secp256k1: Require concerete rand for privkey gen.</li>
<li><a href="b4fab9efd8"><code>b4fab9e</code></a> chaincfg/chainhash: Prepare v1.0.4.</li>
<li><a href="d71616bddb"><code>d71616b</code></a> secp256k1: Add GeneratePrivateKeyFromRand function</li>
<li><a href="9aa79ec168"><code>9aa79ec</code></a> chaincfg: Introduce subsidy split change r2 agenda.</li>
<li><a href="7db7325c42"><code>7db7325</code></a> chaincfg: Introduce BLAKE3 PoW agenda.</li>
<li><a href="ce46220cf7"><code>ce46220</code></a> secp256k1: Fix typo in a doc comment</li>
<li><a href="ca02bcaf5a"><code>ca02bca</code></a> docs: Add release notes for v1.7.7.</li>
<li>Additional commits viewable in <a href="https://github.com/decred/dcrd/compare/blockchain/v4.1.0...dcrec/secp256k1/v4.2.0">compare view</a></li>
</ul>
</details>
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## Description
ref: https://github.com/cosmos/cosmos-sdk/issues/15648
---
### Author Checklist
*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*
I have...
* [ ] 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/main/CONTRIBUTING.md#pr-targeting))
* [ ] provided a link to the relevant issue or specification
* [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/docs/building-modules)
* [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/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
* [ ] reviewed "Files changed" and left comments if necessary
* [ ] confirmed all CI checks have passed
### Reviewers Checklist
*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*
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)
## Description
ref #13140
remove global bech32 in distribution
---
### Author Checklist
*All items are required. Please add a note to the item if the item is not applicable and
please add links to any relevant follow up issues.*
I have...
* [ ] 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/main/CONTRIBUTING.md#pr-targeting))
* [ ] provided a link to the relevant issue or specification
* [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/main/docs/docs/building-modules)
* [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/main/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
* [ ] reviewed "Files changed" and left comments if necessary
* [ ] confirmed all CI checks have passed
### Reviewers Checklist
*All items are required. Please add a note if the item is not applicable and please add
your handle next to the items reviewed if you only reviewed selected items.*
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)
