path is relative to workspace root

[Real-Gecko]

Describe the bug
A clear and concise description of what the bug is.

** Related Components **

• protoc-gen-grpc-federation
• grpc-federation-linter
• grpc-federation-language-server
• grpc-federation-generator
• others

To Reproduce

• go to settings of the project and set path to absolute like "path": "/home/realgecko/go/bin/grpc-federation-language-server"
• go to GRPC Federation output console
• see the message: Launching server using command <path to workspace here>/home/realgecko/go/bin/grpc-federation-language-server failed.

Expected behavior
Path must be not relative to workspace folder