Merge #563

563: chore(deps): bump secp256k1 from 0.24.1 to 0.24.2 r=klochowicz a=dependabot[bot]

Bumps [secp256k1](https://github.com/rust-bitcoin/rust-secp256k1) from 0.24.1 to 0.24.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/rust-bitcoin/rust-secp256k1/blob/secp256k1-0.24.2/CHANGELOG.md">secp256k1's changelog</a>.</em></p>
<blockquote>
<h1>0.24.2 - 2022-12-05</h1>
<ul>
<li>Backport <a href="https://github-redirect.dependabot.com/rust-bitcoin/rust-secp256k1/pull/548">fix soundness issue with <code>preallocated_gen_new</code></a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/rust-bitcoin/rust-secp256k1/commit/959bd2553606247cabe104764e867455226fb129"><code>959bd25</code></a> Merge <a href="https://github-redirect.dependabot.com/rust-bitcoin/rust-secp256k1/issues/256">rust-bitcoin/rust-secp256k1256</a>: Backport and bump 0.24.2</li>
<li><a href="https://github.com/rust-bitcoin/rust-secp256k1/commit/5c6225e7b5062d83f18c67e3eaf13341e5bf6599"><code>5c6225e</code></a> Bump version to 0.24.2</li>
<li><a href="https://github.com/rust-bitcoin/rust-secp256k1/commit/0a696b2d55dfaee60fd2b7f5c1d47577c10b4632"><code>0a696b2</code></a> Add saftey docs for PreallocatedContext trait</li>
<li><a href="https://github.com/rust-bitcoin/rust-secp256k1/commit/dd194b6be880b60a278925d4d258b68af0fdb5c1"><code>dd194b6</code></a> context: introduce unsafe <code>PreallocatedContext</code> trait</li>
<li>See full diff in <a href="https://github.com/rust-bitcoin/rust-secp256k1/compare/secp256k1-0.24.1...secp256k1-0.24.2">compare view</a></li>
</ul>
</details>
<br />


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