cd: add publishing workflow

Author: Aevarkan

.github/workflows/publish.yml

@@ -0,0 +1,29 @@
+name: Publish Package
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  id-token: write  # Required for OIDC
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          registry-url: 'https://registry.npmjs.org'
+
+      # Ensure npm 11.5.1 or later is installed
+      - name: Update npm
+        run: npm install -g npm@latest
+      - run: npm ci
+      - run: npm run build --if-present
+      - run: npm test
+      - run: npm publish

.gitignore

@@ -10,6 +10,10 @@
 !/tests/**
 !vitest.config.ts
 
+# github workflows
+!/.github
+!/.github/**
+
 # misc files
 !tsdown.config.ts
 !.gitignore