Make event handling faster and resilient to missing events

[cortadocodes]

Contents (#625)

IMPORTANT: There is 1 breaking change.

Enhancements

• Allow setting of maximum number of workers for parallel questions in Child.ask_multiple
• Pull up to 50 messages from answer subscriptions at once instead of 1
• Allow skipping of any missing message after a 10s delay in OrderedMessageHandler
• Suppress name/namespace override warning if the value is the same in the environment and service configuration file
• Speed up event validation by caching service communication JSON schema
• 💥 BREAKING CHANGE: Extract SRUID for child logs context from subscription in message handler

Fixes

• Exit early from message pulling if heartbeat check fails
• Make Manifest.update_dataset_paths method thread-safe

Refactoring

• Factor out multiple checks of package version in message handler

Testing

• Improve message handling tests by not mocking _pull_and_enqueue_available_messages method and removing MockMessagePuller

---

Upgrade instructions

💥 Extract SRUID for child logs from subscription in message handler

This removes the `service_name` argument from `Service.wait_for_answer`. If you were using this argument, simply remove it; logs from children shown in a parent will now have the full and correct SRUID automatically.

[codecov-commenter]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (04364f2) 94.90% compared to head (e9d5d92) 94.86%. Report is 5 commits behind head on main.

Files	Patch %	Lines
octue/cloud/pub_sub/message_handler.py	97.22%	1 Missing :warning:
octue/diagnostics.py	75.00%	1 Missing :warning:
octue/resources/child.py	83.33%	1 Missing :warning:
octue/runner.py	85.71%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #625 +/- ## ========================================== - Coverage 94.90% 94.86% -0.04% ========================================== Files 77 77 Lines 3394 3409 +15 ========================================== + Hits 3221 3234 +13 - Misses 173 175 +2 ```

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