fix mssql connection?

Author: drebrez

.github/workflows/integration-tests.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   microsoft_sql:
     if: github.event.pull_request.draft == false
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     env:
       RunDockerTests: true
     steps: