MNTOR-3465: HIBP responses with 429

[mansaj]

References:

Jira: MNTOR-3465

Description

Respond with 429 instead of 500 for HIBP webhook

Checklist (Definition of Done)

• Commits in this PR are minimal and have descriptive commit messages.
• All acceptance criteria are met.
• Jira ticket has been updated (if needed) to match changes made during the development process.
• Jira ticket has been updated (if needed) with suggestions for QA when this PR is deployed to stage.

[github-actions]

Preview URL 🚀 : https://blurts-server-pr-4966-mgjlpikfea-uk.a.run.app

[rhelmer]

We probably do want to be notified if the topic is not found, should that one report to Sentry or do you think logger.error is sufficient? That one is unlikely to fix itself

[mansaj]

We probably do want to be notified if the topic is not found, should that one report to Sentry or do you think logger.error is sufficient? That one is unlikely to fix itself

added sentry, it is much easier than combing through the logs at this point.
Do you think 429 or 500 make more sense here

[github-actions]

Cleanup completed - database 'blurts-server-pr-4966' destroyed, cloud run service 'blurts-server-pr-4966' destroyed