build(deps): bump libm from 0.2.14 to 0.2.15 (#36902)

Bumps [libm](https://github.com/rust-lang/compiler-builtins) from 0.2.14
to 0.2.15.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/rust-lang/compiler-builtins/releases">libm's
releases</a>.</em></p>
<blockquote>
<h2>libm-v0.2.15</h2>
<h3>Other</h3>
<ul>
<li>Require <code>target_has_atomic = &quot;ptr&quot;</code> for runtime
feature detection</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="a4c748f72a"><code>a4c748f</code></a>
release-plz: Include the libm changelog in compiler-builtins</li>
<li><a
href="cf00941064"><code>cf00941</code></a>
chore: release</li>
<li><a
href="da8b5829f4"><code>da8b582</code></a>
Require <code>target_has_atomic = &quot;ptr&quot;</code> for runtime
feature detection</li>
<li><a
href="1b1b2ed16e"><code>1b1b2ed</code></a>
ci: Mention <code>ci: skip-extensive</code> in the error message</li>
<li><a
href="6d78c1acc9"><code>6d78c1a</code></a>
Replace <code>super::super</code> with <code>crate::support</code> where
possible</li>
<li><a
href="8e78411a4f"><code>8e78411</code></a>
docs: fix typo in Cargo.toml</li>
<li>See full diff in <a
href="https://github.com/rust-lang/compiler-builtins/compare/libm-v0.2.14...libm-v0.2.15">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -4258,9 +4258,9 @@ dependencies = [
 
 [[package]]
 name = "libm"
-version = "0.2.14"
+version = "0.2.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a25169bd5913a4b437588a7e3d127cd6e90127b60e0ffbd834a38f1599e016b8"
+checksum = "f9fbbcab51052fe104eb5e5d351cf728d30a5be1fe14d9be8a3b097481fb97de"
 
 [[package]]
 name = "libredox"