fix(deps): Bump mongoose from 7.6.3 to 7.6.4 (#261)

Bumps [mongoose](https://github.com/Automattic/mongoose) from 7.6.3 to 7.6.4.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/Automattic/mongoose/blob/7.6.4/CHANGELOG.md">mongoose's changelog</a>.</em></p>
<blockquote>
<h1>7.6.4 / 2023-10-30</h1>
<ul>
<li>fix(connection): retain modified status for documents created outside a transaction during transaction retries <a href="https://redirect.github.com/Automattic/mongoose/issues/14017">#14017</a> <a href="https://redirect.github.com/Automattic/mongoose/issues/13973">#13973</a></li>
<li>fix(schema): handle recursive schemas in discriminator definitions <a href="https://redirect.github.com/Automattic/mongoose/issues/14011">#14011</a> <a href="https://redirect.github.com/Automattic/mongoose/issues/13978">#13978</a></li>
<li>fix: handle casting $or underneath $elemMatch <a href="https://redirect.github.com/Automattic/mongoose/issues/14007">#14007</a> <a href="https://redirect.github.com/Automattic/mongoose/issues/13974">#13974</a></li>
<li>fix(populate): allow using options: { strictPopulate: false } to disable strict populate <a href="https://redirect.github.com/Automattic/mongoose/issues/13863">#13863</a></li>
<li>docs: fix differences between sample codes and documentation <a href="https://redirect.github.com/Automattic/mongoose/issues/13998">#13998</a> <a href="https://github.com/suzuki">suzuki</a></li>
<li>docs: fix missing import and change wrong variable name <a href="https://redirect.github.com/Automattic/mongoose/issues/13992">#13992</a> <a href="https://github.com/suzuki">suzuki</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/Automattic/mongoose/commit/4ff1916ef0833bfd8a2d70e3ca71719e57869cf9"><code>4ff1916</code></a> chore: release 7.6.4</li>
<li><a href="https://github.com/Automattic/mongoose/commit/120b442da3955b540231d77bcea9b5fdfad56a85"><code>120b442</code></a> Merge pull request <a href="https://redirect.github.com/Automattic/mongoose/issues/14017">#14017</a> from Automattic/vkarpov15/gh-13973-2</li>
<li><a href="https://github.com/Automattic/mongoose/commit/8a7f2f2bdf736a98c0b56f4481756c39e226b0e3"><code>8a7f2f2</code></a> Merge pull request <a href="https://redirect.github.com/Automattic/mongoose/issues/14011">#14011</a> from Automattic/vkarpov15/<a href="https://redirect.github.com/Automattic/mongoose/issues/13978">gh-13978</a></li>
<li><a href="https://github.com/Automattic/mongoose/commit/a1dc45bdf923b32ff6f09abbdc7e24f2165d0a83"><code>a1dc45b</code></a> test: modify test name re: code review comments</li>
<li><a href="https://github.com/Automattic/mongoose/commit/a5e4ec26dc4cd2b19c54a4fc7317e72f64b21c46"><code>a5e4ec2</code></a> Update test/schema.test.js</li>
<li><a href="https://github.com/Automattic/mongoose/commit/6c4d836461378d1737340f59f36e6665281c566b"><code>6c4d836</code></a> fix(document): handle <a href="https://redirect.github.com/Automattic/mongoose/issues/9396">#9396</a> case by only applying <a href="https://redirect.github.com/Automattic/mongoose/issues/13973">#13973</a> logic if in transaction</li>
<li><a href="https://github.com/Automattic/mongoose/commit/c795ce46ad1a744f2f6064c3aac56cfcc67dc588"><code>c795ce4</code></a> fix(connection): retain modified status for documents created outside a trans...</li>
<li><a href="https://github.com/Automattic/mongoose/commit/64f20987576e555064d986d262cf3243de9f9ca5"><code>64f2098</code></a> fix(schema): handle recursive schemas in discriminator definitions</li>
<li><a href="https://github.com/Automattic/mongoose/commit/266804b995ae715cd4746d0e5b687e7fb96441fc"><code>266804b</code></a> fix: handle casting $or within $elemMatch</li>
<li><a href="https://github.com/Automattic/mongoose/commit/4d084e9d0d07442801df91a9ebdabea950e95e2e"><code>4d084e9</code></a> Merge pull request <a href="https://redirect.github.com/Automattic/mongoose/issues/13998">#13998</a> from suzuki/fix/doc-plungins</li>
<li>Additional commits viewable in <a href="https://github.com/Automattic/mongoose/compare/7.6.3...7.6.4">compare view</a></li>
</ul>
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