Move "team:viewer" label action to labeler.yaml.

This avoids the need for a separate job step.

.github/labeler.yaml

@@ -76,3 +76,6 @@ c/cpp:
   - '**/*.i'
   - '**/*.inl'
   - '**/*.y'
+
+'team:viewer':
+  - '*'

.github/workflows/label.yaml

@@ -13,18 +13,3 @@ jobs:
         with:
           configuration-path: .github/labeler.yaml
           repo-token: "${{ secrets.GITHUB_TOKEN }}"
-
-  label-pr:
-    if:
-      ${{ github.event_name == 'opened' &&
-          github.event.pull_request.head.repo.owner.login == 'secondlife' }}
-    runs-on: ubuntu-latest
-    permissions:
-      pull-requests: write
-    steps:
-      - run: gh pr edit "$NUMBER" --add-label "$LABELS"
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          GH_REPO: ${{ github.repository }}
-          NUMBER: ${{ github.event.pull_request.number }}
-          LABELS: "team:viewer"