Fix crash when the bundle ID contains characters not allowed in URL schemes #786
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馃搵 Changes
The SDK uses the URLComponents builder to build the callback URL, with the bundle ID as the scheme. However, this builder throws an exception when the scheme contains invalid characters.
This issue was raised by a customer that had a bundle ID starting with a number. According to the BNF syntax for URI schemes, a scheme cannot start with a number.
This PR makes sure to return an error instead of crashing if the scheme contains any invalid characters.
馃搸 References
Fixes #785
馃幆 Testing
The changes were tested manually using a simulator running iOS 17.0 with Xcode 14.3 (14E222b).