bug(grpc): proto files are not found

[tusharmath]

While running from the CLI to generate a tailcall configuration the paths of the proto dependencies aren't correctly resolved, often resulting in errors as files aren't found.

Technical Requirements
Current, implementation is hand written, we should use leverage Protox's file resolution capabilities to do this.

https://docs.rs/protox/0.6.0/protox/file/index.html

[ssddOnTop]

originally we were using protox crate but we dropped it (in #1041) for WASM support because it uses std::fs.

[amitksingh1490]

Fixed in #1705