fix(auth): add missing channel param to signUp method (#625) #750

Job	Run time
linux (5.10)	3m 42s
Examples	6m 3s
xcodebuild-macOS-14 (test, IOS)	4m 6s
xcodebuild (test, IOS)	5m 49s
xcodebuild-macOS-14 (test, MAC_CATALYST)	5m 44s
xcodebuild (test, MAC_CATALYST)	5m 3s
xcodebuild-macOS-14 (test, MACOS)	5m 39s
xcodebuild (test, MACOS)	5m 29s
xcodebuild-macOS-14 (test, TVOS)	4m 26s
xcodebuild (test, TVOS)	5m 4s
xcodebuild-macOS-14 (test, WATCHOS)	5m 42s
xcodebuild (test, WATCHOS)	5m 5s
xcodebuild-macOS-14 (IOS)	3m 43s
xcodebuild (IOS)	4m 31s
xcodebuild-macOS-14 (MAC_CATALYST)	3m 44s
xcodebuild (MAC_CATALYST)	5m 2s
xcodebuild-macOS-14 (MACOS)	4m 24s
xcodebuild (MACOS)	5m 32s
xcodebuild-macOS-14 (TVOS)	3m 27s
xcodebuild (TVOS)	5m 16s
xcodebuild-macOS-14 (WATCHOS)	4m 19s
xcodebuild (WATCHOS)	4m 46s
	1h 46m 36s

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