fix(ios): added self. to savedCall in scan()

[hauserkristof]

After tyring to build it Xcode failed because of missing reference:

Fixed it, and it is working properly on iOS, with Ionic Angular: ❯ npx cap doctor 💊 Capacitor Doctor 💊

Latest Dependencies:

@capacitor/cli: 4.0.1 @capacitor/core: 4.0.1 @capacitor/android: 4.0.1 @capacitor/ios: 4.0.1

Installed Dependencies:

@capacitor/cli: 4.0.1 @capacitor/core: 4.0.1 @capacitor/android: 4.0.1 @capacitor/ios: 4.0.1

[success] iOS looking great! 👌

[thegnuu]

Thank you @hauserkristof