Add workflow to automatically build for npm changes

.github/workflows/dependabot-build.yml

@@ -0,0 +1,46 @@
+name: Run build for dependabot PRs
+
+on:
+  pull_request:
+    types: [opened, synchronize]
+
+permissions:
+  contents: write
+  pull-requests: read
+jobs:
+  build:
+    if: ${{ github.actor == 'dependabot[bot]' }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Fetch Dependabot metadata
+        id: dependabot-metadata
+        uses: dependabot/fetch-metadata@v1
+      - uses: actions/checkout@v3
+        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'npm' }}
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - name: Set up Node.js 16.x
+        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'npm' }}
+        uses:
+          actions/setup-node@v3
+        with:
+          node-version: 16.x
+      - name: Install dependencies
+        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'npm' }}
+        run: npm ci
+      - name: Run build
+        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'npm' }}
+        run: |
+          npm run build
+          npm run package
+      - name: If there are changes commit them
+        if: ${{ steps.dependabot-metadata.outputs.package-ecosystem == 'npm' }}
+        run: |
+          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
+            echo "Detected uncommitted changes after build."
+            git config --global user.name "bot"
+            git config --global user.email "bot@example.com"
+            git add dist/
+            git commit -m "Update dist/ for dependabot"
+            git push
+          fi