Use single topic per workspace

[cortadocodes]

Contents (#639)

IMPORTANT: There are 4 breaking changes.

New features

• 💥 BREAKING CHANGE: Publish events and subscribe to them with a single octue.services topic per workspace

Enhancements

• 💥 BREAKING CHANGE: Add mandatory originator, sender, recipient, and UUID event attributes
• Make Topic's representation consistent with Subscription's
• Add string representation to MockMessageWrapper

Fixes

• Only update earliest waiting event number in event handler if there are waiting messages
• Fix race condition in event emission order by factoring order out of Topic and into new EventCounter class
• Avoid silently failing if question_uuid attribute missing

Operations

• Add octue.services topic to terraform config
• Update bigquery table and event handler cloud function

Refactoring

• 💥 BREAKING CHANGE: Rename message_number to order
• 💥 BREAKING CHANGE: Rename version attribute to sender_sdk_version
• Rename receiving_service to recipient
• Rename Service._send_message to Service._emit_event

Testing

• Test get_sruid_from_pub_sub_resource_name
• Simplify GoogleCloudPubSubHandler tests
• Simplify pub/sub event handler tests
• Factor out service patching to start of test classes

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Upgrade instructions

Update all services in your services network to use this version of octue or later (0.53.0+).

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 92.85714% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 94.61%. Comparing base (811cc94) to head (426e765).

Files	Patch %	Lines
octue/cloud/emulators/_pub_sub.py	84.61%	2 Missing :warning:
octue/cloud/events/counter.py	83.33%	2 Missing :warning:
octue/cloud/pub_sub/service.py	93.33%	2 Missing :warning:
...cloud/deployment/google/answer_pub_sub_question.py	50.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## better-support-asynchronous-questions #639 +/- ## ========================================================================= - Coverage 94.76% 94.61% -0.15% ========================================================================= Files 80 81 +1 Lines 3514 3530 +16 ========================================================================= + Hits 3330 3340 +10 - Misses 184 190 +6 ```

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