Update For Building for Xcode 14 & Improve CI

[PSchmiedmayer]

Update For Building for Xcode 14 & Improve CI

💡 Proposed solution

• Fixes build errors in Xcode 14
• Improves the CI to identify regressions in the future

Code of Conduct & Contributing Guidelines

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• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

Merging #9 (697e1c0) into main (287bfbc) will increase coverage by 0.52%.
The diff coverage is 100.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #9      +/-   ##
==========================================
+ Coverage   77.93%   78.45%   +0.52%     
==========================================
  Files           5        5              
  Lines         299      283      -16     
==========================================
- Hits          233      222      -11     
+ Misses         66       61       -5     

Impacted Files	Coverage Δ
...urces/SpeziContact/Contact Views/ContactCard.swift	75.00% <100.00%> (+6.82%)	⬆️
...urces/SpeziContact/Contact Views/ContactView.swift	78.79% <100.00%> (-0.06%)	⬇️

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