chore(deps): bump golang.org/x/net in /api/proto-go

Bumps [golang.org/x/net](https://github.com/golang/net) from 0.0.0-20210917221730-978cfadd31cf to 0.38.0.
- [Commits](https://github.com/golang/net/commits/v0.38.0)

---
updated-dependencies:
- dependency-name: golang.org/x/net
  dependency-version: 0.38.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]