Fixes https://github.com/webrecorder/browsertrix/issues/1883
Backend work for https://github.com/webrecorder/browsertrix/issues/1876
- If readOnly is set true, disallow crawls and QA analysis runs
- If readOnly is set to true, skip scheduled crawls
- Add endpoint to set `readOnly` with optional `readOnlyReason` (which
is automatically set back to an empty string when `readOnly` is being
set to false), which can be displayed in banner
- Operator: ensures cronjobs that are skipped due to internal logic (eg. readonly mode) simply succeed right away and do not leave a k8s job dangling.
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Co-authored-by: Ilya Kreymer <ikreymer@users.noreply.github.com>
Co-authored-by: Ilya Kreymer <ikreymer@gmail.com>