Bump KafkaFlow.Serializer.ProtobufNet from 2.5.0 to 3.0.7

Bumps [KafkaFlow.Serializer.ProtobufNet](https://github.com/Farfetch/kafkaflow) from 2.5.0 to 3.0.7.
- [Release notes](https://github.com/Farfetch/kafkaflow/releases)
- [Commits](Farfetch/kafkaflow@2.5.0...3.0.7)

---
updated-dependencies:
- dependency-name: KafkaFlow.Serializer.ProtobufNet
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Directory.Packages.props

@@ -33,7 +33,7 @@
     <PackageVersion Version="2.5.0" Include="KafkaFlow.Microsoft.DependencyInjection" />
     <PackageVersion Version="2.5.0" Include="KafkaFlow.SchemaRegistry" />
     <PackageVersion Version="2.5.0" Include="KafkaFlow.Serializer" />
-    <PackageVersion Version="2.5.0" Include="KafkaFlow.Serializer.ProtobufNet" />
+    <PackageVersion Version="3.0.7" Include="KafkaFlow.Serializer.ProtobufNet" />
     <PackageVersion Version="2.5.0" Include="KafkaFlow.Serializer.SchemaRegistry.ConfluentProtobuf" />
     <PackageVersion Version="2.5.0" Include="KafkaFlow.TypedHandler" />
     <PackageVersion Version="3.1.0" Include="NetEscapades.Configuration.Yaml" />