Use github-pr-annotations reporter for protolint

Using `github-pr-review` requires elevated write permissions to the
repository, just to write a review, which can compromise the security
of the repository, by using the `pull_request_target` event which gives
the GitHub token write access, or using a custom token which complicates
the setup.

To simplify things we just switch to `github-pr-annotations` reporter,
which doesn't need any write permissions, and failed checks will still
be shown in the diff view.

https://github.com/reviewdog/reviewdog?tab=readme-ov-file#reporter-github-pr-annotations--reportergithub-pr-annotations

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

.github/workflows/ci.yaml

@@ -27,9 +27,6 @@ jobs:
   protolint:
     name: Check proto files with protolint
     runs-on: ubuntu-20.04
-    permissions:
-      contents: read
-      pull-requests: write
 
     steps:
       - name: Fetch sources
@@ -47,7 +44,7 @@ jobs:
           filter_mode: nofilter
           github_token: ${{ secrets.github_token }}
           protolint_flags: proto/
-          reporter: github-pr-review
+          reporter: github-pr-annotations
 
   nox:
     name: Test with nox