Add GH Action to publish every main commit to NPM as a patch version (#…

…30)

* Add GH Action to publish every main commit to NPM as a patch version

* update actions to v4

.github/workflows/publish.yaml

@@ -0,0 +1,38 @@
+on:
+  workflow_dispatch:
+  push:
+    branches: [main]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    concurrency: publish-single-concurrency
+
+    # Based on:
+    # https://docs.github.com/en/actions/publishing-packages/publishing-nodejs-packages#publishing-packages-to-the-npm-registry
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 20.x
+          cache: npm
+          registry-url: "https://registry.npmjs.org"
+
+      - run: npm ci
+
+      - name: Increment npm package version number
+        run: |
+          git config --global user.name "${{ github.actor }}"
+          git config --global user.email "${{ github.actor }}@users.noreply.github.com"
+          npm version patch -m "Version bump: v%s"
+          git push
+
+      - run: npm run build
+
+      # TODO: publish publicly
+      # - run: npm publish --access public
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}