Test dependencies upgrade

Update Grpc gateway to 2.18.0

Signed-off-by: Matthieu MOREL <matthieu.morel35@gmail.com>

Release v0.5.0

• Add arm64 target architecture to published images to allow using them on Macs with Apple silicone
• Replace custom build steps with official actions docker/metadata-action and docker/build-push-action

Release v0.4.0

• use google.golang.org/protobuf instead of github.com/golang/protobuf (#28)

Release 0.2.0

• Improve C# support, set GRPC_CSHARP_VERSION=1.28.1 (#15) <Benjamin Krämer>

Release 0.1.0

Features

• Dependencies synced with Jaeger repository
• Code generation in multiple languages including Go, Java, Python, ...
• README with usage instructions
• Automatic build/push setup using GitHub Actions