Improve test coverage calculation #664

Job	Run time
Build Project Integration on Xcode 15	2m 16s
Build Project Integration on Xcode 15	18s
Build Multi Project Integration on Xcode 15	2m 25s
Build Multi Project Integration on Xcode 15	20s
Build and Test on Linux	5m 43s
Build and Test on Linux	6m 1s
Lint Swift	1m 12s
Lint Swift	1m 12s
Check Markdown links	18s
Check Markdown links	18s
Build and Test on Xcode 15	32s
Build and Test on Xcode 15	4m 20s
Build with xcodebuild on Xcode 15 (generic/platform=ios)	1s
Build with xcodebuild on Xcode 15 (generic/platform=ios)	4m 23s
Build with xcodebuild on Xcode 15 (platform=macos)	1s
Build with xcodebuild on Xcode 15 (platform=macos)	2m 32s
Build Package Integration on Xcode 15	1s
Build Package Integration on Xcode 15	1m 31s
Build with xcodebuild on Xcode 15 (generic/platform=tvos)	1s
Build with xcodebuild on Xcode 15 (generic/platform=tvos)	4m 42s
Build with xcodebuild on Xcode 15 (generic/platform=watchos)	1s
Build with xcodebuild on Xcode 15 (generic/platform=watchos)	7m 35s
Build with xcodebuild on Xcode 15 (generic/platform=visionos)	1s
Build with xcodebuild on Xcode 15 (generic/platform=visionos)	4m 33s
	50m 17s

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