chore: add workflow to update Browserlist database on push

.github/workflows/browserslist.yml

@@ -0,0 +1,39 @@
+name: Update Browserslist database
+on: [push]
+permissions:
+  contents: write
+  pull-requests: write
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Configure git
+      run: |
+        # Setup for commiting using built-in token. See https://github.com/actions/checkout#push-a-commit-using-the-built-in-token
+        git config user.name "github-actions[bot]"
+        git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+    - name: Cache node modules
+      uses: actions/cache@v2
+      env:
+        cache-name: cache-node-modules
+      with:
+        path: ~/.npm
+        key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ hashFiles('**/package-lock.json') }}
+        restore-keys: |
+          ${{ runner.os }}-build-${{ env.cache-name }}-
+          ${{ runner.os }}-build-
+          ${{ runner.os }}-
+    - uses: actions/setup-node@v1
+      with:
+        node-version: '12'
+    - run: npm install
+    - name: Update Browserslist database and create PR if applies
+        uses: c2corg/browserslist-update-action@v2
+        with:
+          commit_message: 'chore: update Browserslist db'
+          title: 'Update Browserslist database'
+          body: Auto-generated by `.github/workflows/browserslist.yml` using c2corg/browserslist-update-action
+          labels: 'dependencies,fast tracked,process,size/XS'
+          reviewers: 'doamatto'
+