Rename cirrus_rerender cirrus_toolbox
- Copy the python scripts from the CirrusSearch folder
- Add/fix mypy violation for simple scripts, ignore the whole file for others
- Add isort like cirrus-reindexer-orchestrator
- Add the elasticsearch lib as an extra_requires to avoid trying to install it by default (not available on deployment machine)
- Bump python min acceptable version to 3.9
Bug: T378382