MINOR: [C#] Bump Google.Protobuf from 3.26.0 to 3.26.1 in /csharp (ap…

…ache#40923)

Bumps [Google.Protobuf](https://github.com/protocolbuffers/protobuf) from 3.26.0 to 3.26.1.
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/2434ef2adf0c74149b9d547ac5fb545a1ff8b6b5"><code>2434ef2</code></a> Updating version.json and repo version numbers to: 26.1</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/49253b118b40719b938c2b74a53d70f5450d87b0"><code>49253b1</code></a> Merge pull request <a href="https://redirect.github.com/protocolbuffers/protobuf/issues/16308">#16308</a> from protocolbuffers/cp-26x-3</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/9bf69ecc833757839421b89e92ddb4dc09b2af0d"><code>9bf69ec</code></a> Fix validateFeatures to be called after resolved features are actually set to...</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/b752bc2b93ea16b1ec19c9a7421f77a028d7ecdf"><code>b752bc2</code></a> Merge pull request <a href="https://redirect.github.com/protocolbuffers/protobuf/issues/16307">#16307</a> from protocolbuffers/cp-26x-2</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/f7d23268df8a9e1ac4a9ac3a9178bba68e66e088"><code>f7d2326</code></a> Merge pull request <a href="https://redirect.github.com/protocolbuffers/protobuf/issues/16309">#16309</a> from protocolbuffers/cp-26x-4</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/2e51ff6de3e8c594d965b2ad8952b911383cf0bf"><code>2e51ff6</code></a> Cherry-pick required label handling in JRuby field descriptor from <a href="https://gi">https://gi</a>...</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/a2f5303916d00725cbd63ee92445b330f70d71a6"><code>a2f5303</code></a> Update cmake stalenes</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/6a177d2cf6d6eb0f4dc87426947252c9f5e7df2b"><code>6a177d2</code></a> Merge branch '26.x' into cp-26x-4</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/2d3d8ba410550082ee20777653a2a1d515ff8036"><code>2d3d8ba</code></a> Expand cpp_features_proto_srcs visibility</li>
<li><a href="https://github.com/protocolbuffers/protobuf/commit/e1092ee6e0b7328d5d506d65322f0b15c5b08b21"><code>e1092ee</code></a> Merge pull request <a href="https://redirect.github.com/protocolbuffers/protobuf/issues/16294">#16294</a> from protocolbuffers/cp-26x</li>
<li>Additional commits viewable in <a href="https://github.com/protocolbuffers/protobuf/compare/v3.26.0...v3.26.1">compare view</a></li>
</ul>
</details>
<br />

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Authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Signed-off-by: Curt Hagenlocher <[email protected]>

csharp/src/Apache.Arrow.Flight/Apache.Arrow.Flight.csproj

@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.26.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.26.1" />
     <PackageReference Include="Grpc.Net.Client" Version="2.59.0" />
     <PackageReference Include="Grpc.Tools" Version="2.62.0" PrivateAssets="All" />
   </ItemGroup>