Chore: add label to external contributions (#340)

Author: kevinwcyu

.github/pr-commands.json

@@ -0,0 +1,21 @@
+[
+  {
+    "type": "author",
+    "name": "pr/external",
+    "notMemberOf": {
+      "org": "grafana"
+    },
+    "ignoreList": ["renovate[bot]", "dependabot[bot]", "grafana-delivery-bot[bot]", "grafanabot"],
+    "action": "updateLabel",
+    "addLabel": "pr/external"
+  },
+  {
+    "type": "label",
+    "name": "pr/external",
+    "action": "addToProject",
+    "addToProject": {
+      "url": "https://github.com/orgs/grafana/projects/97",
+      "column": "Incoming"
+    }
+  }
+]

.github/workflows/pr-commands.yml

@@ -0,0 +1,31 @@
+name: PR automation
+on:
+  pull_request_target:
+    types:
+      - labeled
+      - opened
+concurrency:
+  group: pr-commands-${{ github.event.number }}
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Actions
+        uses: actions/checkout@v4
+        with:
+          repository: 'grafana/grafana-github-actions'
+          path: ./actions
+          ref: main
+      - name: Install Actions
+        run: npm install --production --prefix ./actions
+      - name: 'Generate token'
+        id: generate_token
+        uses: tibdex/github-app-token@3beb63f4bd073e61482598c45c71c1019b59b73a
+        with:
+          app_id: ${{ secrets.AWS_DS_TOKEN_CREATOR_ID }}
+          private_key: ${{ secrets.AWS_DS_TOKEN_CREATOR_PEM }}
+      - name: Run Commands
+        uses: ./actions/commands
+        with:
+          token: ${{ steps.generate_token.outputs.token }}
+          configPath: pr-commands