ci: update Xcode 26.0.1 to 26.2 #439

Job	Run time
test (26.2, 26.2, iPhone 16 Pro, NO, macos-15)	2m 56s
build (5.10, 15.4, macos-14)	52s
test (18.5, 16.4, iPhone 16 Pro, NO, macos-15)	3m 37s
cocoapods	1m 16s
build (5, 16.4, macos-15)	1m 24s
example (Maps-SwiftUI)	1m 11s
build (5, 26.2, macos-15)	53s
example (Maps)	1m 12s
example (Stocks)	1m 59s
example (Samples)	1m 45s
test (17.5, 15.4, iPhone 15 Pro, NO, macos-14)	2m 5s
example (SamplesObjC)	1m 17s
swiftpm (26.2, iphoneos, arm64)	1m 7s
example (SamplesSwiftUI)	1m 14s
swiftpm (26.2, iphonesimulator, arm64)	25s
swiftpm (15.4, iphonesimulator, arm64)	21s
swiftpm (16.4, iphoneos, arm64)	29s
swiftpm (16.4, iphonesimulator, arm64)	34s
swiftpm (16.4, iphonesimulator, x86_64)	22s
swiftpm (26.2, iphonesimulator, x86_64)	40s
swiftpm (15.4, iphonesimulator, x86_64)	18s
swiftpm (15.4, iphoneos, arm64)	21s
	26m 18s

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