add ios support for performSetGroupCallAction

[danjenkins]

Just trying to work out whats needed to utilise the new callkit ios flag in RN-WebRTC 75 and realised we still don't support performSetGroupCallAction

I plan on submitting a PR for it but making the issue so it doesn't get forgotten about

[manuquentin]

Hi @danjenkins is this sill an issue ?

[danjenkins]

yup still needs done