Add an annotation/label of the github actions job url that created the image

Description

so that we can trace back the github actions

something like:

const github_token = getInput('github_token') || process.env.GITHUB_TOKEN
const owner = context.repo.owner
const repo = context.repo.repo
const run_id = Number(context.runId)
const job_name = context.job

const octokit = getOctokit(github_token)
const jobs = await octokit.paginate(octokit.rest.actions.listJobsForWorkflowRun, {
  run_id,
  owner,
  repo,
})

const job = jobs.find(job => job.name === job_name)
return job.html_url;

ps. I'm willing to open an PR if this would be acceptable

Start at the action entry point and review the supplied context.runId/context.job values and octokit.rest.actions.listJobsForWorkflowRun call. Done means the generated image metadata includes the creating GitHub Actions job's html_url, with the intended label or annotation format confirmed.