Add external PR labeler action

.github/workflows/external_pr_labeler.yml

@@ -0,0 +1,41 @@
+name: External PR labeler
+
+on:
+  pull_request_target:
+#   types:
+#     - opened
+
+jobs:
+  label_prs:
+    name: Label external PRs
+    runs-on: ubuntu-latest
+    permissions: read-all
+    steps:
+#     - id: is_member
+#       name: Check if author is an org member
+#       run: |
+#         curl -L \
+#           -H "Accept: application/vnd.github+json" \
+#           -H "Authorization: Bearer ${{ secrets.GITHUB_TOKEN }}" \
+#           -H "X-GitHub-Api-Version: 2022-11-28" \
+#           https://api.github.com/orgs/uyuni-project/members/${{ github.actor }}
+
+      - id: is_member
+        name: Check if author is an org member
+        env:
+          GH_TOKEN: ${{ secrets.ORG_READ_TOKEN }}
+        run: |
+          gh api orgs/uyuni-project/members/does_not_exist
+          RESULT=$?
+          echo "result=$RESULT" >> "$GITHUB_OUTPUT"
+          exit $RESULT
+      - name: Label the PR
+        if: ${{ failure() }}
+        run: |
+          echo "Actor: ${{ github.actor }}"
+          echo "Is a member? ${{ steps.is_member.outputs.result }}"
+#   - uses: tspascoal/get-user-teams-membership@v2
+#     with:
+#       username: ${{ github.actor }}
+#       team: 'uyuni-project'
+#       GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}