Quick update of the examples to GTMAppAuth 3.0

Fix small typo in documentation

Update the reserved words check.

Generate current services from discovery.

Update the reserved word list for Ventura.

Don't use GTMAppAuth 3.0 until the potential build issue is resolved.

Re enable watchOS.

Generate current versions of services.

Generate current service sources.

Switch to macos-latest CI images.

Update generated services to what is currently being served up.

Update Services.

Bump to 3.0 version because of the new min iOS version.

Update services.

Update to actions/checkout@v3 to avoid warnings.