fix: CI build

[bednar]

Proposed Changes

1. Use lates three version of the swift to test client - 5.8, 5.9, 5.10
2. Use correct API for expectation
3. Upgrade Xcode to 15.3.0

Checklist

• CHANGELOG.md updated
• Rebased/mergeable
• swift test completes successfully
• Commit messages are conventional
• Sign CLA (if not already signed)

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 65.09%. Comparing base (4b7e4b9) to head (7415c0f).

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Additional details and impacted files

@@             Coverage Diff             @@
##           master      #66       +/-   ##
===========================================
+ Coverage   42.31%   65.09%   +22.77%     
===========================================
  Files         145       17      -128     
  Lines       10473     1338     -9135     
===========================================
- Hits         4432      871     -3561     
+ Misses       6041      467     -5574     

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[karel-rehor]

Tests are passing in CI. In tests same two basic changes relative to XCTestExpectation and wait(for: [expectation], timeout: 1) are consistent throughout.