Add resource detection for Google Cloud Build pipelines

[krzko]

Is your feature request related to a problem?

A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]

The resource detection functions should detect resource information from the underlying CI/CD system, in this case, Google Cloud Build pipelines. It should append or override the resource value in telemetry data with this information.

A basis for this work is following the OTEL Collector resource detection processor.

Describe the solution you'd like

Append/add Github Actions workflow-specific information, such as;

• Pipeline details
• Step details

Describe alternatives you've considered

Additional context

Spec - https://cloud.google.com/build/docs/build-config-file-schema