Create opentelemetry-shell-action

[krzko]

Is your feature request related to a problem?

To allow for seamless tracing to take place it would be nice to allow traces to take place behind the scenes, without too much user interaction ala the Jenkins OTEL plugin.

Describe the solution you'd like

name: otel-sh-action-example
on: [push]
jobs:
  awesome-job:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: krzko/opentelemetry-shell-action@v1
        with:
          otlp-exporter-otel-endpoint: 'https://otel.awesomedomain.com:443'
      - run: docker ...
      - run: gcloud ...

Describe alternatives you've considered

Additional context