fix(auth): add missing channel param to signUp method #749

Job	Run time
Examples	5m 32s
xcodebuild-macOS-14 (test, IOS)	4m 39s
xcodebuild (test, IOS)	9m 26s
linux (5.10)	3m 43s
xcodebuild-macOS-14 (test, MAC_CATALYST)	4m 29s
xcodebuild (test, MAC_CATALYST)	4m 27s
xcodebuild-macOS-14 (test, MACOS)	5m 11s
xcodebuild (test, MACOS)	5m 8s
xcodebuild-macOS-14 (test, TVOS)	4m 29s
xcodebuild (test, TVOS)	5m 0s
xcodebuild-macOS-14 (test, WATCHOS)	5m 15s
xcodebuild (test, WATCHOS)	5m 50s
xcodebuild-macOS-14 (IOS)	4m 1s
xcodebuild (IOS)	4m 19s
xcodebuild (MAC_CATALYST)	6m 10s
xcodebuild-macOS-14 (MAC_CATALYST)	3m 3s
xcodebuild (MACOS)	4m 32s
xcodebuild-macOS-14 (MACOS)	4m 14s
xcodebuild (TVOS)	4m 51s
xcodebuild-macOS-14 (TVOS)	2m 51s
xcodebuild-macOS-14 (WATCHOS)	3m 29s
xcodebuild (WATCHOS)	4m 30s
	1h 45m 9s

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