[DENG-11194] Create graphics_dashboard job, migrated from spark

[BenWu]

https://mozilla-hub.atlassian.net/browse/DENG-11194

Note that this is largely AI-generated code and documentation and it looks right to me, but I don't have all the domain knowledge to be certain.

This is a migration of the spark jobs in https://github.com/mozilla/python_mozetl/tree/main/mozetl/graphics. The output is almost the same. The main difference is that it's now using the glean metrics ping instead of the legacy main ping. This makes the output for the graphs not 1:1 but usually close (differences are documented in the readme).

This can be run locally with a copy of the frontend with:

python -m graphics_dashboard.dashboard --dry-run
python -m graphics_dashboard.trends --dry-run
# serve the webpage on port 8000
python serve_frontend.py

Checklist for reviewer:

• Commits should reference a bug or github issue, if relevant (if a bug is referenced, the pull request should include the bug number in the title)

• Scan the PR and verify that no changes (particularly to .circleci/config.yml) will cause environment variables (particularly credentials) to be exposed in test logs

• Ensure the container image will be using permissions granted to telemetry-airflow responsibly.