[ENH] Ignore proto files generated by Go (#3347)

## Description of changes

*Summarize the changes made by this PR.*
 - Improvements & Bug fixes
   - These are generated at build time now

## Test plan
*How are these changes tested?*
- [x] Tests pass locally with `pytest` for python, `yarn test` for js, `cargo test` for rust

## Documentation Changes
None

Author: sanketkedia

.gitignore

@@ -5,6 +5,7 @@
 go/bin/
 go/**/testdata/
 go/coordinator/bin/
+go/pkg/proto/
 
 clients/js/package-lock.json