Update raven to 6.6.0

[pyup-bot]

There's a new version of raven available.
You are currently using 5.32.0. I have updated it to 6.6.0

These links might come in handy: PyPI | Changelog | Repo

Changelog

6.6.0

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• [Core] Add trimming to breadcrumbs.
• [Core] Improve host message at startup.
• [Core] Update pytest to work on other environments

6.5.0

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• [Core] Fixed missing deprecation on processors.SanitizePasswordsProcessor
• [Core] Improve exception handling in Serializer.transform
• [Core] Fixed celery.register_logger_signal ignoring subclasses
• [Core] Fixed sanitizer skipping byte instances
• [Lambda] Fixed AttributeError when requestContext not present

6.4.0

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• [Core] Support for defining sanitized_keys on the client (pr/990)
• [Django] Support for Django 2.0 Urlresolver
• [Docs] Several fixes and improvements

6.3.0

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• [Core] Changed default timeout on http calls to 5 seconds
• [Core] Fixed relative paths for traces generated on Windows
• [Django] Fixed import issues for Django projects < 1.7
• [Django] Fixed django management command data option
• [Django/DRF] Added application/octet-stream to non-cacheable types in middleware
• [Django] Added parsing X-Forwarded-For for user.ip_address
• [Flask] Added request.remote_addr as fallback for ip addresses
• [Lambda] Added initial AWS Lambda support with contrib.awslambda.LambdaClient

6.2.1

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• [Core] Fixed requirements in setup.py

6.2.0

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• [Core] get_frame_locals properly using max_var_size
• [Core] Fixed raven initialization when logging._srcfile is None
• [Core] Fixed import locking to avoid recursion
• [Django] Fixed several issues for Django 1.11 and Django 2.0
• [Django/DRF] Fixed issue with unavailable request data
• [Flask] Added app.logger instrumentation
• [Flask] Added signal on setup_logging
• [ZConfig] Added standalone ZConfig support
• [Celery] Fixed several issues related to Celery

6.1.0

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• Support both string and class values for ignore_exceptions parameters.
  Class values also support child exceptions.
• Ensure consistent fingerprint for SoftTimeLimitExceeded exceptions
• Add sample_rate configuration
• fix registration of hooks for Django

6.0.0

---

• Strip whitespace from DSNs automatically.
• Add last_event_id accessor to Client.
• Do not require sys.argv to be available any more.
• Tags defined on a logging handler will now be merged with individual log record's tags.
• Added explicit support for multidicts in the django client.
• Refactored transports to support multiple URLs. This might affect
  you if you have custom subclasses of those. The main change is that
  the URL parameter moved from the constructor into the send method.
• Corrected an issue with recursive route resolvers which commonly
  affected things like django-tastyepie.
• Corrected an issue where Django's HTTP request was not always available
  within events.

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖