fix: Missing MLS Conversation (WPB-7085)

[alexandreferris]

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Issues

In the logs we would get errors: WelcomeBundle followed by CoreCrypto.ConversationNotFound

Solutions

As we receive the conversationId from the MLSWelcome event, we can first try to fetch conversation if its unknown then get MLSClient

Dependencies (Optional)

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Needs releases with:

• GitHub link to other pull request

Testing

Test Coverage (Optional)

• I have added automated test to this contribution

How to Test

Briefly describe how this change was tested and if applicable the exact steps taken to verify that it works as expected.

Notes (Optional)

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PR Post Submission Checklist for internal contributors (Optional)

• Wire's Github Workflow has automatically linked the PR to a JIRA issue

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PR Post Merge Checklist for internal contributors

• If any soft of configuration variable was introduced by this PR, it has been added to the relevant documents and the CI jobs have been updated.

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References

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[github-actions]

Test Results

2 836 tests   2 707 ✔️  33s ⏱️
   485 suites     129 💤
   485 files           0 ❌

Results for commit 604a55d.

♻️ This comment has been updated with latest results.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

❗ No coverage uploaded for pull request base (release/candidate@5c76f00). Click here to learn what that means.

Additional details and impacted files

@@                 Coverage Diff                  @@
##             release/candidate    #2617   +/-   ##
====================================================
  Coverage                     ?   58.39%           
  Complexity                   ?        7           
====================================================
  Files                        ?     1177           
  Lines                        ?    46096           
  Branches                     ?     4366           
====================================================
  Hits                         ?    26917           
  Misses                       ?    17223           
  Partials                     ?     1956           

Files	Coverage Δ
...nc/receiver/conversation/MLSWelcomeEventHandler.kt	90.32% <100.00%> (ø)

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[datadog-wireapp]

Datadog Report

Branch report: fix/missing_mls_conversation
Commit report: bf2afc1
Test service: kalium-jvm

✅ 0 Failed, 2829 Passed, 123 Skipped, 8m 39.04s Wall Time