Update dependency Google.Protobuf.Tools to 3.28.3

Author: renovate[bot]

Directory.Packages.props

@@ -301,7 +301,7 @@
 	</ItemGroup>
 	<!-- Serialize Protobuf Tools -->
 	<ItemGroup>
-		<PackageVersion Include="Google.Protobuf.Tools" Version="3.28.2" />
+		<PackageVersion Include="Google.Protobuf.Tools" Version="3.28.3" />
 	</ItemGroup>
 	<!-- Resilience & Transient Fault Handling -->
 	<ItemGroup>