ci: add workflow to deploy to github page

.github/workflows/deploy.yml

@@ -0,0 +1,82 @@
+# Sample workflow for building and deploying a Gatsby site to GitHub Pages
+#
+# To get started with Gatsby see: https://www.gatsbyjs.com/docs/quick-start/
+#
+name: Deploy Gatsby site to Pages
+
+on:
+  # Runs on pushes targeting the default branch
+  push:
+    branches: ["main"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+# Default to bash
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  # Build job
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: "18"
+          cache: npm
+      - name: Setup Pages
+        id: pages
+        uses: actions/configure-pages@v3
+        with:
+          # Automatically inject pathPrefix in your Gatsby configuration file.
+          #
+          # You may remove this line if you want to manage the configuration yourself.
+          static_site_generator: gatsby
+      - name: Restore cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            public
+            .cache
+          key: ${{ runner.os }}-gatsby-build-${{ hashFiles('public') }}
+          restore-keys: |
+            ${{ runner.os }}-gatsby-build-
+      - name: Install dependencies
+        run: npm ci
+      - name: Build with Gatsby
+        env:
+          PREFIX_PATHS: 'true'
+        run: npm run build
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: ./public
+
+  # Deployment job
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2