ci: regenerate release svg automatically

.github/workflows/schedule.yml

@@ -0,0 +1,72 @@
+name: Update Release Schedule SVG
+
+on:
+  schedule:
+    - cron: "0 9 * * 1" # Every Monday at 9:00 AM UTC
+  push:
+    paths:
+      - "schedule.json"
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  update-schedule-svg:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          node-version: "22"
+
+      - name: Generate and optimize schedule SVG
+        shell: bash
+        env:
+          SCHEDULE_JSON: ${{ github.workspace }}/schedule.json
+          SCHEDULE_SVG: ${{ github.workspace }}/schedule.svg
+        run: |
+          # Calculate date range
+          START_DATE=$(date -d "3 months ago" +%Y-%m-%d)
+          END_DATE=$(date -d "18 months" +%Y-%m-%d)
+          echo "Generating SVG from $START_DATE to $END_DATE"
+
+          # Generate SVG (output to schedule.svg)
+          npx [email protected] -s "$START_DATE" -e "$END_DATE" -d "$SCHEDULE_JSON" -g "$SCHEDULE_SVG"
+
+          # Optimize SVG
+          npx [email protected] "$SCHEDULE_SVG"
+
+      - name: Check for changes in schedule.svg
+        id: git_check
+        run: |
+          if git diff --quiet schedule.svg; then
+            echo "changed=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "changed=true" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Create Pull Request
+        if: steps.git_check.outputs.changed == 'true'
+        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
+        with:
+          token: ${{ secrets.GH_API_TOKEN }}
+          author: "Node.js GitHub Bot <[email protected]>"
+          branch: update-branch
+          base: main
+          commit-message: "feat: Node.js ${{ steps.updt.outputs.result }}"
+          title: "chore: update release svg"
+          delete-branch: true
+          team-reviewers: |
+            nodejs/releasers
+
+      - name: Create workflow summary
+        run: |
+          if [[ "${{ steps.git_check.outputs.changed }}" == "true" ]]; then
+            echo "✅ Schedule SVG updated successfully" >> "$GITHUB_STEP_SUMMARY"
+          else
+            echo "ℹ️ No changes detected in schedule SVG" >> "$GITHUB_STEP_SUMMARY"
+          fi