build: add GitHub Action to update tools modules

Update ESLint, Babel, remark, and so on. Run once a week.

PR-URL: #40644
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

.github/workflows/tools.yml

@@ -0,0 +1,56 @@
+name: "tools update"
+on:
+  schedule:
+    # Run once a week at 00:05 AM UTC on Saturday.
+    - cron: '5 0 * * 6'
+
+  workflow_dispatch:
+
+jobs:
+  tools_update:
+    if: github.repository == 'nodejs/node'
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false  # Prevent other jobs from aborting if one fails
+      matrix:
+        include:
+          - id: eslint
+            run: |
+              cd tools
+              NEW_VERSION=$(npm view eslint dist-tags.latest)
+              CURRENT_VERSION=$(node -p "require('./node_modules/eslint/package.json').version")
+              if [ "$NEW_VERSION" != "$CURRENT_VERSION" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                tools/update-eslint.sh
+              fi
+          - id: "@babel/eslint-parser"
+            run: |
+              cd tools
+              NEW_VERSION=$(npm view @babel/eslint-parser dist-tags.latest)
+              CURRENT_VERSION=$(node -p "require('./node_modules/@babel/eslint-parser/package.json').version")
+              if [ "$NEW_VERSION" != "$CURRENT_VERSION" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                tools/update-babel-eslint.sh
+              fi
+          - id: "lint-md dependencies"
+            run: |
+              cd tools/lint-md
+              NEW_VERSION=$(npm outdated --omit=dev --parseable | cut -d: -f4 | xargs)
+              if [ "$NEW_VERSION" != "" ]; then
+                echo "NEW_VERSION=$NEW_VERSION" >> $GITHUB_ENV
+                rm -rf package-lock.json node_modules && npm install --ignore-scripts)
+                make lint-md-rollup
+              fi
+    steps:
+      - uses: actions/checkout@v2
+      - run: ${{ matrix.run }}
+      - uses: gr2m/create-or-update-pull-request-action@v1  # Create a PR or update the Action's existing PR
+        env:
+          GITHUB_TOKEN: ${{ secrets.GH_USER_TOKEN }}
+        with:
+          author: Node.js GitHub Bot <github-bot@iojs.org>
+          body: "This is an automated update of ${{ matrix.id }} to ${{ env.NEW_VERSION }}."
+          branch: "actions/tools-update-${{ matrix.id }}"  # Custom branch *just* for this Action.
+          commit-message: "tools: update ${{ matrix.id }} to ${{ env.NEW_VERSION }}"
+          labels: tools
+          title: "tools: update ${{ matrix.id }} to ${{ env.NEW_VERSION }}"