Bump memmap2 from 0.7.1 to 0.8.0 (#2780)

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Bumps [memmap2](https://github.com/RazrFalcon/memmap2-rs) from 0.7.1 to
0.8.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/RazrFalcon/memmap2-rs/blob/master/CHANGELOG.md">memmap2's
changelog</a>.</em></p>
<blockquote>
<h2>[0.8.0] - 2023-09-25</h2>
<h3>Changed</h3>
<ul>
<li>The <code>Advice</code> type is a struct and not an enum now.
<a
href="https://github.com/adamreichold"><code>@​adamreichold</code></a></li>
</ul>
<h3>Fixed</h3>
<ul>
<li>Some of the <code>Advise</code> variants were unsound and now
require <code>unsafe</code> to be constructed.
<a
href="https://github.com/adamreichold"><code>@​adamreichold</code></a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/RazrFalcon/memmap2-rs/commit/2cf8233b49d62af7d830e9493c9f7b43e761d5b6"><code>2cf8233</code></a>
Version bump.</li>
<li><a
href="https://github.com/RazrFalcon/memmap2-rs/commit/c4b497ee8b35fcdc9fd4b9284a4dbc0b5499a3f6"><code>c4b497e</code></a>
Change madvise API to differentiate between safe and unsafe advice
options.</li>
<li><a
href="https://github.com/RazrFalcon/memmap2-rs/commit/53d6e4cb50b270fbea912fe1ee4b2e3e576faaa5"><code>53d6e4c</code></a>
A few tiny clippy-inspired nits.</li>
<li>See full diff in <a
href="https://github.com/RazrFalcon/memmap2-rs/compare/v0.7.1...v0.8.0">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/core/Cargo.toml

@@ -49,7 +49,7 @@ typed-builder = "0.14.0"
 twox-hash = "1.6.0"
 vec-collections = "0.3.4"
 piz = "0.5.0"
-memmap2 = "0.7.1"
+memmap2 = "0.8.0"
 ouroboros = "0.18.0"
 
 [dev-dependencies]