{
  "released": "5.7.0",
  "stable": "5.7.0",
  "head": "5.7.0"
}

{
  "released": "6.0.0",
  "stable": "6.0.0",
  "head": "6.0.0"
}

Update Firebase C++/Unity SDK version number to 6.0.0. (plus guids)
Update Firebase C++/Unity SDK version number to 6.0.0. (plus guids)

PiperOrigin-RevId: 246402653
