add publishing workflow and rename test workflow

Author: zorkow

.github/workflows/publish.yml

@@ -0,0 +1,31 @@
+name: Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  setup:
+    runs-on: ubuntu-latest
+    name: Build and publish MathJax
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: pnpm/action-setup@v4
+        name: Install pnpm
+        with:
+          version: 10
+          run_install: false
+
+      - name: Install packages
+        run: pnpm -s i
+
+      - name: Build MathJax
+        run: pnpm -s build-all
+        
+      - name: Publish to npm
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: pnpm -s publish --access public
+