feat(curated-recommendations): [MC-1270] handle graphql errors and refactor retry logic

[mmiermans]

References

JIRA: MC-1270

Description

• Handle GraphQL errors from the corpus api, which have a 200 status code.
• Simplify the retry logic using tenacity.

PR Review Checklist

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• [x] This PR conforms to the Contribution Guidelines
• [x] The PR title starts with the JIRA issue reference, format [DISCO-####], and has the same title (if applicable)
• [ ] [load test: (abort|warn)] keywords are applied (if applicable)
• [x] Documentation has been updated (if applicable)
• [x] Functional and performance test coverage has been expanded and maintained (if applicable)