GRDB7: Enable the Swift 6 language mode #1281

Job	Run time
SQLCipher3 (Xcode_16.1.app, macOS-14, Xcode 16.1)	7m 25s
SQLCipher3 (Xcode_16.1.app, macOS-14, Xcode 16.1)	7m 25s
SQLCipher3 (Xcode_16.1.app, macOS-14, Xcode 16.1)	7m 25s
SQLCipher4 (Xcode_16.1.app, macOS-14, Xcode 16.1)	13m 29s
SQLCipher4 (Xcode_16.1.app, macOS-14, Xcode 16.1)	1h 0m 16s
SQLCipher4 (Xcode_16.1.app, macOS-14, Xcode 16.1)	13m 56s
CustomSQLite (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 16s
CustomSQLite (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 16s
CustomSQLite (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 16s
SPM (Xcode_16.1.app, macOS-14, Xcode 16.1)	10m 41s
SPM (Xcode_16.1.app, macOS-14, Xcode 16.1)	10m 41s
SPM (Xcode_16.1.app, macOS-14, Xcode 16.1)	10m 41s
XCFramework (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 51s
XCFramework (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 51s
XCFramework (Xcode_16.1.app, macOS-14, Xcode 16.1)	5m 51s
Framework (Xcode_16.1.app, macOS-14, platform=macOS, macOS)	4m 38s
Framework (Xcode_16.1.app, macOS-14, platform=macOS, macOS)	3m 58s
Framework (Xcode_16.1.app, macOS-14, platform=macOS, macOS)	3m 58s
Framework (Xcode_16.1.app, macOS-14, OS=18.1,name=iPhone 15 Pro, iOS)	9m 35s
Framework (Xcode_16.1.app, macOS-14, OS=18.1,name=iPhone 15 Pro, iOS)	9m 35s
Framework (Xcode_16.1.app, macOS-14, OS=18.1,name=iPhone 15 Pro, iOS)	9m 35s
Framework (Xcode_16.1.app, macOS-14, OS=18.0,name=Apple TV, tvOS)	4m 0s
Framework (Xcode_16.1.app, macOS-14, OS=18.0,name=Apple TV, tvOS)	4m 0s
Framework (Xcode_16.1.app, macOS-14, OS=18.0,name=Apple TV, tvOS)	4m 0s
	3h 48m 39s

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