build(deps): bump cxx from 1.0.114 to 1.0.115 (#1670)

Bumps [cxx](https://github.com/dtolnay/cxx) from 1.0.114 to 1.0.115.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/cxx/releases">cxx's
releases</a>.</em></p>
<blockquote>
<h2>1.0.115</h2>
<ul>
<li>Work around some <code>dead_code</code> warnings (<a
href="https://redirect.github.com/dtolnay/cxx/issues/1303">#1303</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="5ceca34a28"><code>5ceca34</code></a>
Release 1.0.115</li>
<li><a
href="24c540f1b0"><code>24c540f</code></a>
Lockfile update</li>
<li><a
href="5bbe3e8606"><code>5bbe3e8</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/cxx/issues/1303">#1303</a>
from dtolnay/deadcode</li>
<li><a
href="2e0af3bd06"><code>2e0af3b</code></a>
Update ui test suite to nightly-2024-01-06</li>
<li><a
href="92f405d4c8"><code>92f405d</code></a>
Work around new dead_code warnings</li>
<li><a
href="4b7012c9a0"><code>4b7012c</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/cxx/issues/1302">#1302</a>
from dennisschagt/tutorial-add-rerun-if-changed</li>
<li><a
href="ab8eddc3fb"><code>ab8eddc</code></a>
Include printing of &quot;cargo:rerun-if-changed&quot; in tutorial</li>
<li><a
href="bf4df67be0"><code>bf4df67</code></a>
Use released version of rules_rust through Bazel Central Registry</li>
<li>See full diff in <a
href="https://github.com/dtolnay/cxx/compare/1.0.114...1.0.115">compare
view</a></li>
</ul>
</details>
<br />


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Cargo.lock

@@ -424,9 +424,9 @@ dependencies = [
 
 [[package]]
 name = "cxx"
-version = "1.0.114"
+version = "1.0.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ed3a27153f220bb42b96005947ca3b87266cfdae5b4b4d703642c3a565e9708"
+checksum = "8de00f15a6fa069c99b88c5c78c4541d0e7899a33b86f7480e23df2431fce0bc"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -451,15 +451,15 @@ dependencies = [
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.114"
+version = "1.0.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6981d27196cca89f82c8a89fd495cca25066d2933c974e907f7c3699801e112"
+checksum = "6f3fed61d56ba497c4efef9144dfdbaa25aa58f2f6b3a7cf441d4591c583745c"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.114"
+version = "1.0.115"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca7e7d41b675af76ee4844e8e4c1cec70b65555dbc4852eae7b11c9cd5525d60"
+checksum = "8908e380a8efd42150c017b0cfa31509fc49b6d47f7cb6b33e93ffb8f4e3661e"
 dependencies = [
  "proc-macro2",
  "quote",