{
  "released": "6.14.1",
  "stable": "6.14.1",
  "head": "6.14.1"
}

{
  "released": "6.15.0",
  "stable": "6.15.0",
  "head": "6.15.0"
}

Update Firebase C++ and Unity to 6.15.0
Update Firebase C++ and Unity to 6.15.0

PiperOrigin-RevId: 312419737
