Bump Google.Protobuf from 3.33.1 to 3.33.4

---
updated-dependencies:
- dependency-name: Google.Protobuf
  dependency-version: 3.33.4
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

Directory.Packages.props

@@ -3,7 +3,7 @@
     <ManagePackageVersionsCentrally>true</ManagePackageVersionsCentrally>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="Google.Protobuf" Version="3.33.1" />
+    <PackageVersion Include="Google.Protobuf" Version="3.33.4" />
     <PackageVersion Include="Grpc.AspNetCore.Server" Version="2.71.0" />
     <PackageVersion Include="Grpc.Net.Client" Version="2.71.0" />
     <PackageVersion Include="Grpc.Tools" Version="2.76.0" />