New Labels Request - `sampler: aws:xray`, `propagator: aws:xray`, and `id-generator: aws:xray`

[srprash]

Hello, I'm reaching out on behalf of the AWS X-Ray team. We would like to request the addition of new labels to this repository: sampler: aws:xray, propagator: aws:xray, and id-generator: aws:xray. These labels would be used for PRs and issues pertaining to the X-Ray Sampler, X-Ray Propagator, and X-Ray ID Generator. Ideally, there would be automation that adds these labels to PRs touching X-Ray component code - we would be happy to help with this if some guidance was provided.

Our goal is to have labelling across open-telemetry repositories so that we can find PRs and issues related to the X-Ray components and give faster support to the OTEL community.

Thank you.