fix(ci): remove reviewdog hack (#3477)

.github/workflows/test.yml

@@ -67,30 +67,6 @@ jobs:
     steps:
       - name: "Checkout code"
         uses: "actions/checkout@v4"
-      # reviewdog is having issues with large diffs.
-      # The issue https://github.com/reviewdog/reviewdog/issues/1696 is not
-      # yet fully solved (as of reviewdog 0.17.4).
-      # The workaround is to fetch PR head and merge base commits explicitly:
-      # Credits to https://github.com/grafana/deployment_tools/pull/162200.
-      # NB: fetch-depth=0 does not help (and is not recommended per se).
-      # TODO(kolesnikovae): Remove this workaround when the issue is fixed.
-      - name: Get merge commit between head SHA and base SHA
-        id: merge-commit
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
-        with:
-          script: |
-            const { data: { merge_base_commit } } = await github.rest.repos.compareCommitsWithBasehead({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              basehead: `${context.payload.pull_request.base.sha}...${context.payload.pull_request.head.sha}`,
-            });
-            console.log(`Merge base commit: ${merge_base_commit.sha}`);
-            core.setOutput('merge-commit', merge_base_commit.sha);
-      - name: Fetch merge base and PR head
-        run: |
-          git config --system --add safe.directory '*'
-          git fetch --depth=1 origin "${{ steps.merge-commit.outputs.merge-commit }}"
-          git fetch --depth=1 origin "${{ github.event.pull_request.head.sha }}"
       - name: "Run doc-validator tool"
         run: >
           doc-validator
@@ -105,7 +81,6 @@ jobs:
           --reporter=github-pr-review
         env:
           REVIEWDOG_GITHUB_API_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
-          REVIEWDOG_SKIP_GIT_FETCH: true
 
   build-image:
     if: github.event_name != 'push'