Add SonarQube monorepo integration

Author: Fajfa

.github/workflows/sonar.yml

@@ -0,0 +1,19 @@
+name: SonarQube
+on:
+  push:
+    branches:
+      - '202[3-9].[39].x'
+  pull_request:
+    types: [opened, synchronize, reopened]
+jobs:
+  sonarqube:
+    name: SonarQube
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Shallow clones should be disabled for a better relevancy of analysis
+      - name: SonarQube Scan
+        uses: SonarSource/sonarqube-scan-action@v4
+        env:
+          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}

.github/workflows/stale-issues.yml

@@ -0,0 +1,2 @@
+sonar.projectKey=cortezaproject_corteza_monorepo
+sonar.organization=cortezaproject