Change the Spezi icon in Onboarding to a star #4

Job	Run time
Periphery / Periphery	6m 14s
CodeQL / Test using xcodebuild or run fastlane	43m 11s
REUSE Compliance Check / REUSE Compliance Check	10s
Markdown Link Check / Check Links	21s
SwiftLint / SwiftLint	11s
	50m 7s

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