feat: Testservice can create new MLS conversations (WPB-9185)

[mythsunwind]

WPB-9185 Testservice can create MLS conversations

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• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
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What's new in this PR?

This PR adds a new endpoint to create MLS conversations since conversations with MLS need a client that initialize them (in contract to proteus conversations which can be created by the backend).

Example:
PUT /conversation { name: 'My new conversation', users: ['234324-2343243-34324234@domain']}

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

Test Results

0 tests   - 3 197   0 ✔️  - 3 092   0s ⏱️ - 3m 40s
0 suites  -    550   0 💤  -    105 
0 files    -    550   0 ❌ ±       0 

Results for commit 59df99c. ± Comparison against base commit 59ddcf2.

♻️ This comment has been updated with latest results.

[github-actions]

Bencher

Report	Wed, September 4, 2024 at 12:32:44 UTC
Project	kalium
Branch	feat/testservice-new-conversation
Testbed	ubuntu-latest

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Benchmark	Latency	Latency Results nanoseconds (ns)
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInFiles	➖ (view plot)	686,387.66
com.wire.kalium.benchmarks.logic.CoreLogicBenchmark.createObjectInMemory	➖ (view plot)	403,689,311.62
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.messageInsertionBenchmark	➖ (view plot)	923,733,923.98
com.wire.kalium.benchmarks.persistence.MessagesNoPragmaTuneBenchmark.queryMessagesBenchmark	➖ (view plot)	21,458,347.09

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.60%. Comparing base (27532f3) to head (59df99c).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #2993   +/-   ##
========================================
  Coverage    52.60%   52.60%           
========================================
  Files         1296     1296           
  Lines        49823    49823           
  Branches      4648     4648           
========================================
  Hits         26207    26207           
  Misses       21739    21739           
  Partials      1877     1877           

see 2 files with indirect coverage changes

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