Build(deps): Bump ruby-openai from 8.0.0 to 8.1.0 (#810)

Bumps [ruby-openai](https://github.com/alexrudall/ruby-openai) from
8.0.0 to 8.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/alexrudall/ruby-openai/releases">ruby-openai's
releases</a>.</em></p>
<blockquote>
<h2>v8.1.0</h2>
<h3>Added</h3>
<ul>
<li>Add Vector#search endpoint - thank you <a
href="https://github.com/jaebrownn"><code>@​jaebrownn</code></a> for
this PR!</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/alexrudall/ruby-openai/blob/main/CHANGELOG.md">ruby-openai's
changelog</a>.</em></p>
<blockquote>
<h2>[8.1.0] - 2025-03-30</h2>
<h3>Added</h3>
<ul>
<li>Add Vector#search endpoint - thank you <a
href="https://github.com/jaebrownn"><code>@​jaebrownn</code></a> for
this PR!</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/f020cbd5b69d39d24d8ff1b502ad3bb3dae9425c"><code>f020cbd</code></a>
Merge pull request <a
href="https://redirect.github.com/alexrudall/ruby-openai/issues/585">#585</a>
from alexrudall/8.1</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/56920f2b95fc1a09ef433b2bc6e979ad3bad6c1a"><code>56920f2</code></a>
v8.1</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/934098157fe613b5a83e5cbe8115ab604dd3241d"><code>9340981</code></a>
Merge pull request <a
href="https://redirect.github.com/alexrudall/ruby-openai/issues/583">#583</a>
from jaebrownn/main</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/b0341a7270f645d370fd2bd8ae6fd1b1e9715858"><code>b0341a7</code></a>
fix: updated docs to be in the correct place</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/5e53f6a6ed4267bb9c31b5082a3bb855128476f0"><code>5e53f6a</code></a>
chore: removed key checks from tests</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/cf39f3edabc7a3f45ac14cae927865f3137eeed5"><code>cf39f3e</code></a>
chore: added cassettes</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/e1a41710c72754e38a0f807dce29eae3cbedee58"><code>e1a4171</code></a>
chore: added documentation to the readme</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/2d5dd69983b2e78503c852584d740ae43fd3925c"><code>2d5dd69</code></a>
feat: add search method to vector stores and corresponding specs</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/d1ba2926ee68e8db7611f1a367b9ea3b3b65bfb4"><code>d1ba292</code></a>
Merge pull request <a
href="https://redirect.github.com/alexrudall/ruby-openai/issues/581">#581</a>
from alexrudall/chore/tweak-readme</li>
<li><a
href="https://github.com/alexrudall/ruby-openai/commit/8ef578deec4dd50b9c8a4555c37646264b03c439"><code>8ef578d</code></a>
Tweak README intro</li>
<li>See full diff in <a
href="https://github.com/alexrudall/ruby-openai/compare/v8.0.0...v8.1.0">compare
view</a></li>
</ul>
</details>
<br />


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</details>

Author: rsmithlal