Add repo-read-token (viamrobotics#120)

Author: njooma

.github/workflows/compile_protos.yml

@@ -21,6 +21,7 @@ jobs:
         with:
           repository: ${{ github.event.pull_request.head.repo.full_name }}
           ref: ${{ github.event.pull_request.head.ref }}
+          token: ${{ secrets.REPO_READ_TOKEN }}
       - uses: bufbuild/buf-setup-action@v1
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}