GRPC Examples Build Failure Qt 6.5.6 on macOS

Description: None of the GRPC examples in Qt 6.5.6 can be built on macOS due to a configuration failure with the error: "Failed to find required Qt component 'Protobuf'."

Steps to Reproduce:

1. Attempt to build any of the GRPC example projects provided by Qt. Qt GRPC Examples
2. Observe the configuration step failure with the following error message:

[cmake]   Failed to find required Qt component "Protobuf". 

Environment:
macOS : 13.6
Qt creator: 13.0
Xcode: Version 15.2 (15C500b)

Note: Complete cmake output is attached to the bugreport.