Increase timeout to 30 seconds with graphql calls.

What does this merge request do and why?

Increase request timeout to 30 seconds, following @mfanGitLab 's suggestion here.

Also cherrypicked this error handling commit to this branch.

Ref: #393 (closed) (part of #391 (closed))

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

Merge request checklist

• I've ran the affected pipeline(s) to validate that nothing is broken.
• Tests added for new functionality. If not, please raise an issue to follow up.
• Documentation added/updated, if needed.