chore(deps): Bump Google.Protobuf from 3.29.2 to 3.33.0

---
updated-dependencies:
- dependency-name: Google.Protobuf
  dependency-version: 3.33.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/Node.Runtime/Node.Runtime.csproj

@@ -14,7 +14,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="Google.Protobuf" Version="3.29.2" />
+    <PackageReference Include="Google.Protobuf" Version="3.33.0" />
     <PackageReference Include="Microsoft.Extensions.Http" Version="9.0.9" />
     <PackageReference Include="Microsoft.Agents.AI" Version="1.0.0-preview.251028.1" />
     <PackageReference Include="Microsoft.Agents.AI.AzureAI" Version="1.0.0-preview.251028.1" />