[CICD-844] Add SonarQube config and workflow (#114)

Add SonarQube config and workflow

Author: apmatthews

.github/workflows/sonar.yml

@@ -0,0 +1,31 @@
+on:
+  # Trigger analysis for pushes and pull requests
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+name: SonarQube
+jobs:
+  domino_quality_gate:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          # Fetch full history for better SCM information
+          fetch-depth: 0
+
+      - name: Run SonarQube Scan
+        uses: sonarsource/sonarqube-scan-action@master
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}
+
+      - name: Quality Gate Check
+        uses: sonarsource/sonarqube-quality-gate-action@master
+        timeout-minutes: 5
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
+          SONAR_HOST_URL: ${{ secrets.SONAR_HOST_URL }}

sonar-project.properties

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+# Server and project configuration
+sonar.projectVersion=1.0-beta
+sonar.sourceEncoding=UTF-8
+sonar.scm.provider=git
+
+# Project identifiers
+sonar.projectName=github-action-wpe-site-deploy
+sonar.projectKey=wpengine_github-action-wpe-site-deploy_2cd09997-922e-4fc9-b1ba-46178d41a6ce
+
+# Individual configurations
+# Paths to source code directories (use relative paths)
+sonar.sources=.
+
+# # Additional parameters for advanced configurations
+# sonar.exclusions=**/docs/**, **/tests/**, **/node_modules/**