Preserve all source files in Podspec #866

Job	Run time
Build Multi Project Integration on Xcode 16	2m 54s
Build Project Integration on Xcode 16	1m 48s
Build and Test on Linux	8m 31s
Pod Lint (ios)	5m 2s
Build CocoaPods Integration on Xcode 16	1m 45s
Build and Test on Xcode 16	6m 4s
Pod Lint (tvos)	4m 1s
Pod Lint (watchos)	4m 19s
Build Package Integration on Xcode 16	1m 45s
Pod Lint (macos)	4m 18s
Build with xcodebuild on Xcode 16 (generic/platform=ios)	2m 26s
Pod Lint (visionos)	4m 19s
Build with xcodebuild on Xcode 16 (platform=macOS)	1m 28s
Build with xcodebuild on Xcode 16 (generic/platform=tvos)	3m 17s
Lint Swift	1m 22s
Build with xcodebuild on Xcode 16 (generic/platform=watchos)	4m 45s
Check Markdown links	33s
Build with xcodebuild on Xcode 16 (generic/platform=visionos)	3m 6s
	1h 1m 43s

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