fix: Fix signing region source #4065

Job	Run time
apple (macos-14, Xcode_15.2, platform=iOS Simulator,OS=17.2,name=iPhone 15)	8m 39s
linux (jammy, 5.9)	9m 4s
apple (macos-14, Xcode_15.2, platform=tvOS Simulator,OS=17.2,name=Apple TV 4K (3rd generation) (a...	7m 24s
linux (jammy, 6.0)	9m 17s
apple (macos-14, Xcode_15.2, platform=visionOS Simulator,OS=1.0,name=Apple Vision Pro)	15m 30s
apple (macos-14, Xcode_15.2, platform=macOS)	10m 36s
apple (macos-15, Xcode_16.1, platform=iOS Simulator,OS=18.1,name=iPhone 16)	7m 55s
apple (macos-15, Xcode_16.1, platform=tvOS Simulator,OS=18.1,name=Apple TV 4K (3rd generation) (a...	7m 47s
apple (macos-15, Xcode_16.1, platform=visionOS Simulator,OS=2.1,name=Apple Vision Pro)	11m 30s
apple (macos-15, Xcode_16.1, platform=macOS)	9m 27s
	1h 37m 9s

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