Fix a compilation error in Xcode 16 (#636) #318

Job	Run time
carthage	1m 34s
cocoapods	1m 12s
example (Maps)	1m 5s
build (5.10, 15.4, macos-14)	31s
example (Maps-SwiftUI)	40s
swiftpm (iphoneos, arm64)	18s
build (5.9, 15.2, macos-13)	43s
example (Stocks)	3m 50s
swiftpm_old (x86_64-apple-ios16.4-simulator, 14.3.1, macos-13)	49s
swiftpm (iphonesimulator, x86_64)	25s
example (Samples)	1m 6s
build (5.8, 14.3.1, macos-13)	44s
swiftpm_old (arm64-apple-ios16.4-simulator, 14.3.1, macos-13)	38s
swiftpm (iphonesimulator, arm64)	18s
build (5.7, 14.1, macos-12)	55s
swiftpm_old (x86_64-apple-ios15.7-simulator, 14.1, macos-12)	39s
build (5.6, 13.4.1, macos-12)	1m 13s
swiftpm_old (arm64-apple-ios15.7-simulator, 14.1, macos-12)	35s
test (17.5, 15.4, iPhone 15 Pro, NO, macos-14)	4m 2s
build (5.5, 13.2.1, macos-12)	3m 30s
test (16.4, 14.3.1, iPhone 14 Pro, NO, macos-13)	3m 9s
build (5.4, 12.5.1, macos-11)	5m 25s
test (15.5, 13.4.1, iPhone 13 Pro, NO, macos-12)	3m 29s
build (5.3, 12.4, macos-11)	41s
build (5.2, 11.7, macos-11)	46s
	38m 17s

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