Suppress unneeded Azure error logging

[danotorrey]

Replicate the logging level changes in https://github.com/Graylog2/graylog2-server/pull/14918 within this repository as well.

Notes for Reviewers

• [ ] The commit history must be preserved - please use the rebase-merge or standard merge option instead of squash-merge
• [ ] Sync up with the author before merging