Add the deploy and PR GitHub workflows

The deploy one automatically deploys `main` to Azure.

The PR one ensures that the test suite passes.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dscho

.github/workflows/deploy.yml

@@ -0,0 +1,22 @@
+name: Deploy to Azure
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - '.github/workflows/deploy.yml'
+      - 'GitGitGadget/**'
+
+jobs:
+  deploy:
+    if: github.event.repository.fork == false
+    environment: deploy-to-azure
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: Azure/functions-action@v1
+        with:
+          app-name: GitGitGadget
+          publish-profile: ${{ secrets.AZURE_FUNCTIONAPP_PUBLISH_PROFILE }}
+          respect-funcignore: true

.github/workflows/pr.yml

@@ -0,0 +1,18 @@
+name: PR check
+
+on: [pull_request]
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - uses: actions/checkout@v3
+      - name: npm install
+        run: npm install
+      - name: run ESLint
+        run: npm run lint
+      - name: run tests
+        run: npm run test