ci: add pipeline for gh-pages

.github/workflows/gh-pages.yml

@@ -0,0 +1,32 @@
+name: Deploy Angular SPA to GitHub Pages
+
+on:
+    push:
+        branches:
+            - master
+
+permissions:
+    contents: write
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout 🛎️
+              uses: actions/checkout@v4
+              with:
+                  persist-credentials: false
+            - name: Use Node.js 16.15.1
+              uses: actions/setup-node@v1
+              with:
+                  node-version: '16.15.1'
+            - name: Build 🔨
+              run: |
+                  npm install -g @angular/cli@11 --legacy-peer-deps
+                  npm install --legacy-peer-deps
+                  npm run build
+            - name: Deploy 🚀
+              uses: JamesIves/github-pages-deploy-action@v4
+              with:
+                  branch: gh-pages
+                  folder: dist/client