Bump CloudNative.CloudEvents.Protobuf from 2.8.0 to 2.9.0

[dependabot]

Updated CloudNative.CloudEvents.Protobuf from 2.8.0 to 2.9.0.

Release notes

Sourced from CloudNative.CloudEvents.Protobuf's releases.

2.9.0

Changes since 2.8.0:

• Add explicit .NET 10 target to all packages
• Remove .NET Standard 2.1 target from all packages
• Release CloudNative.CloudEvents.Kafka as 3.9.0, bumping the major
  version to reflect adopting a new major Confluence.Kafka version.
• Changed CloudEvents.Amqp dependency from AMQPNetLite and
  AMQPNetLite.Serialization to just AMQPNetLite.Core
• Performance improvements in both JSON packages
• Dependency updates:
  • AMQPNetLite.Core: Effectively 2.4.11 => 2.5.3
  • Apache.Avro: 1.11.3 => 1.12.1
  • Confluent.Kafka: 1.93 => 2.14.2
  • Google.Protobuf: 3.27.3 => 3.35.1
  • MQTTnet: 4.3.6.1152 => 4.3.7.1207
  • Newtonsoft.Json: 13.0.3 => 13.0.4
• Dependencies only for .NET Standard 2.0:
  • Microsoft.AspNetCore.Http: 2.1.34 => 2.3.11
  • System.Memory: 4.5.5 => 4.6.3
  • System.Text.Encodings.Web: 8.0.0 => 10.0.9
  • System.Text.Json: 8.0.4 => 10.0.9

Note on the removal of .NET Standard 2.1: we don't expect this to break users,
although it may mean additional dependencies due to falling back to .NET Standard 2.0.
Please file an issue if this causes problems for you, and we'll consider reinstating
the target.

Commits viewable in compare view.

[dependabot]

Labels

The following labels could not be found: dependencies. Please create it before Dependabot can add it to a pull request.

Please fix the above issues or remove invalid values from dependabot.yml.

[github-actions]

Package	Line Rate	Branch Rate	Health
Fossa.Messaging	38%	12%	➖
Fossa.Messaging	38%	12%	➖
Summary	38% (108 / 286)	12% (12 / 104)	➖

Minimum allowed line rate is 10%