feat(ci): new release flow, linting

# Conflicts:
#	.github/workflows/pr-lint.yml
#	.github/workflows/stale.yml
#	.github/workflows/sync-labels.yml

.github/workflows/update-browserslist.yaml

@@ -0,0 +1,45 @@
+---
+name: Update Browserslist database
+
+on:
+  schedule:
+    # At 02:00 on day-of-month 1 and 15.
+    - cron: '0 2 1,15 * *'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update-browserslist-database:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0
+
+      - name: Setup Node.js Environment
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4.4.0
+        with:
+          always-auth: true
+          node-version-file: '.nvmrc'
+          registry-url: 'https://registry.npmjs.org'
+          scope: '@ivuorinen'
+
+      - name: Configure git
+        run: |
+          git config user.name "fiximus"
+          git config user.email "189535814+fiximus@users.noreply.github.com"
+
+      - name: Update Browserslist database and create PR if applies
+        uses: c2corg/browserslist-update-action@a76abb476199caea5399f9e28ff3f16e491ec566 # v2.5.0
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: ${{ vars.BROWSERSLIST_UPDATE_BRANCH || 'browserslist-update' }}
+          base_branch: ${{ vars.DEFAULT_BRANCH || 'main' }}
+          commit_message: 'chore(deps): update browserslist database'
+          title: 'chore(deps): update browserslist database'
+          body: Auto-generated by [browserslist-update-action](https://github.com/c2corg/browserslist-update-action/)
+          labels: 'maintenance'