feat: Add labels to PR

[brett-anderson]

This adds the labels from a PR to the trace span.

Here is an example from testing:

[corentinmusard]

@brett-anderson Wait how did you manage to make it work?

From the CI/CD run, we can see that no github.pull_requests attributes are recorded.
Also, the pull_request field from the github api is empty: https://api.github.com/repos/corentinmusard/otel-cicd-action/actions/runs/9488555603

[brett-anderson]

@brett-anderson Wait how did you manage to make it work?

From the CI/CD run, we can see that no github.pull_requests attributes are recorded. Also, the pull_request field from the github api is empty: https://api.github.com/repos/corentinmusard/otel-cicd-action/actions/runs/9488555603

I used it inline with the workflow that I'm tracing, perhaps that is how it is working?

This is an example of what the workflow looks like:

name: CI

on:
  pull_request:
    types:
      - opened
      - synchronize
      - reopened
      - labeled
      - unlabeled

jobs:
  ci:
    uses: wrapbook/app-ci/.github/workflows/ci.yml@main
    secrets: inherit

  otel-export-trace:
    name: OpenTelemetry Export Trace
    if: always()
    runs-on: ubuntu-latest
    needs: ci
    steps:
      - name: Export Workflow Trace
        uses: wrapbook/otel-cicd-action@add-ignored-steps
        with:
          otlpEndpoint: grpc://api.honeycomb.io:443/
          otlpHeaders: x-honeycomb-team=${{ secrets.HONEYCOMB_GHA_CI_APIKEY }}
          otelServiceName: otel-export-trace
          githubToken: ${{ secrets.GITHUB_TOKEN }}

[brett-anderson]

@corentinmusard I've now moved this to a triggered workflow, new workflow looks like this:

on:
  workflow_run:
    workflows: ["CI"]
    types:
      - completed

jobs:
  trace_ci:
    runs-on: ubuntu-latest
    steps:
      - name: Trace CI
        uses: wrapbook/otel-cicd-action@add-ignored-steps
        with:
          otlpEndpoint: grpc://api.honeycomb.io:443/
          otlpHeaders: x-honeycomb-team=${{ secrets.HONEYCOMB_GHA_CI_APIKEY }}
          otelServiceName: ci-v2
          githubToken: ${{ secrets.GITHUB_TOKEN }}
          runId: ${{ github.event.workflow_run.id }}

I am still having the labels show up:

Maybe because this PR is created outside of the repo? I could try re-creating it within the repo to see if that adds the pull request to the context.