Bump protobuf from 3.19.4 to 3.19.5 in /examples/research_projects/decision_transformer
Bumps [protobuf](https://github.com/protocolbuffers/protobuf) from 3.19.4 to 3.19.5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/protocolbuffers/protobuf/releases">protobuf's releases</a>.</em></p>
<blockquote>
<h2>Protocol Buffers v3.19.5</h2>
<h1>C++</h1>
<ul>
<li>Reduce memory consumption of MessageSet parsing</li>
<li>This release addresses a <a href="https://github.com/protocolbuffers/protobuf/security/advisories/GHSA-8gq9-2x98-w8hf">Security Advisory for C++ and Python users</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/b464cfbee18c71c40e761a5273ad369f3547294b"><code>b464cfb</code></a> Updating changelog</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/40859fb1c03bfbffe10cdb8009d08ff7e8d8a2f2"><code>40859fb</code></a> Updating version.json and repo version numbers to: 19.5</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/3b175f173903c934f5ba0d1726b430ddbce7ea56"><code>3b175f1</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/protocolbuffers/protobuf/issues/10543">#10543</a> from deannagarcia/3.19.x</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/c05b5f3755af2f6a05c37cb0930373ac3e37463f"><code>c05b5f3</code></a> Add missing includes</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/0299c03005fbfe086d8394fb7a873a8a21fe327f"><code>0299c03</code></a> Apply patch</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/0a722f1573e629f8c3adc8fd4d298522b667548c"><code>0a722f1</code></a> Update version.json with &quot;lts&quot;: true (<a href="https://github-redirect.dependabot.com/protocolbuffers/protobuf/issues/10533">#10533</a>)</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/d5eb60a56081930c706198e459480ab3204e435c"><code>d5eb60a</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/protocolbuffers/protobuf/issues/10530">#10530</a> from protocolbuffers/deannagarcia-patch-6</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/6cf1f78c27c15ae66fb7714798c82de24d4aa2a8"><code>6cf1f78</code></a> Update version.json</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/97fc8447c7b2441bff9b5be02d0964bfe4926302"><code>97fc844</code></a> Merge pull request <a href="https://github-redirect.dependabot.com/protocolbuffers/protobuf/issues/10504">#10504</a> from deannagarcia/3.19.x</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/29d60a2fa478d3c222a615c39cbf29918f194877"><code>29d60a2</code></a> Add version file</li>
<li>Additional commits viewable in <a href="https://github.com/protocolbuffers/protobuf/compare/v3.19.4...v3.19.5">compare view</a></li>
</ul>
</details>
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