Update sentry-raven from 2.4.0 to 2.5.3
What does this MR do?
Upgrade `sentry-raven to a more recent version.
Are there points in the code the reviewer needs to double check?
Why was this MR needed?
2.5.x provides better performance and improved Sidekiq context information gathering. See CHANGELOG
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added - Tests
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Added for this feature/bug -
All builds are passing
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Conform by the merge request performance guides -
Conform by the style guides -
Branch has no merge conflicts with master(if it does - rebase it please) -
Squashed related commits together