Support XCode version 15.0.0

[nickesk]

CircleCI supports XCode 15.0.0 now, but the language server does not appear to have been updated. For example:

macos:
  xcode: 15.0.0

Gives me the following error in VSCode:

[{
	"owner": "cci-diag",
	"severity": 8,
	"message": "Invalid Xcode version 15.0.0",
	"source": "cci-language-server" 
}]

The full list of supported XCode versions is here.

[abdelDriowya]

thanks you for reporting.
pr opened : #240

[ksarna]

Hey, this seems to be outdated again. I'm getting the same error now for XCode 15.2.0 and 15.3.0 even though it's on the list. Trying with macos.m1.medium.gen1