[processor/resourcedetection] Add support for Bare Metal Solution GCP platform

[ghost]

Description: Add support for Bare Metal Solution platform to the GCP resourcedetection processor

FYI I had to place the check for gcp.BareMetalSolution before !metadata.OnGCE() because the latter fails on Bare Metal Solution due to the absence of a metadata server.

Link to tracking Issue:

Testing: unit tests updated

Documentation:

[dashpole]

Looks like this still needs tests

[ghost]

Looks like this still needs tests

Sure, what specific tests would you like me to implement?

[dashpole]

Sure, what specific tests would you like me to implement?

You should add a case similar to other platforms, e.g.:

opentelemetry-collector-contrib/processor/resourcedetectionprocessor/internal/gcp/gcp_test.go

Lines 144 to 163 in a133a8e

	{
	desc: "Cloud Run",
	detector: newTestDetector(&fakeGCPDetector{
	projectID: "my-project",
	cloudPlatform: gcp.CloudRun,
	faaSID: "1472385723456792345",
	faaSCloudRegion: "us-central1",
	faaSName: "my-service",
	faaSVersion: "123456",
	}),
	expectedResource: map[string]any{
	conventions.AttributeCloudProvider: conventions.AttributeCloudProviderGCP,
	conventions.AttributeCloudAccountID: "my-project",
	conventions.AttributeCloudPlatform: conventions.AttributeCloudPlatformGCPCloudRun,
	conventions.AttributeCloudRegion: "us-central1",
	conventions.AttributeFaaSName: "my-service",
	conventions.AttributeFaaSVersion: "123456",
	conventions.AttributeFaaSInstance: "1472385723456792345",
	},
	},

[ghost]

You should add a case similar to other platforms, e.g.:

Done. PTAL ?

[dashpole]

Looks like you still need to add a changelog entry. See https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/CONTRIBUTING.md#changelog for how to do that.

[ghost]

I've added a changelog entry. PTAL ?