Automate Browserlist DB Update (#642)

* feat: added cron github action to auto update brwoserlist DB periodically

* feat: added workflow_dispatch for manual testing

* fix: fixed error

* fix: fixed indentation issue

* fix: linting issue

.github/workflows/update-browserlist.yml

@@ -0,0 +1,47 @@
+name: Update Browserlist DB
+on:
+  schedule:
+    - cron:  '0 0 * * 1'
+  workflow_dispatch:
+
+env:
+  PR_TITLE: Update browserslist DB
+  COMMIT_MESSAGE: "chore: update browserslist"
+  PR_BODY: Updated browserlist DB
+  BRANCH_NAME: "update-browserslist"
+
+jobs:
+  update-dep:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [16]
+        npm: [8.5.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node }}
+    - run: npm install -g npm@${{ matrix.npm }}
+    - run: make requirements
+
+    - name: Update dependencies
+      run: npx browserslist@latest --update-db
+
+    - name: setup testeng-ci
+      run: |
+        git clone https://github.com/edx/testeng-ci.git
+        cd $GITHUB_WORKSPACE/testeng-ci
+        pip install -r requirements/base.txt
+    - name: create pull request
+      id: createpullrequest
+      env:
+        GITHUB_TOKEN: ${{ secrets.requirements_bot_github_token }}
+        GITHUB_USER_EMAIL: ${{ secrets.requirements_bot_github_email }}
+      run: |
+        cd $GITHUB_WORKSPACE/testeng-ci
+        python -m jenkins.pull_request_creator --repo-root=$GITHUB_WORKSPACE \
+        --target-branch="master" --base-branch-name="${{ BRANCH_NAME }}" \
+        --commit-message="${{ COMMIT_MESSAGE }}" --pr-title="${{ PR_TITLE }}" \
+        --pr-body="${{ PR_BODY }}" --delete-old-pull-requests --output-pr-url-for-github-action