Added Flink 2.0.0 to workflow

Author: mzitnik

.github/workflows/integration-tests.yaml

@@ -9,7 +9,7 @@ jobs:
       fail-fast: false
       matrix:
         clickhouse: [ "23.7", "24.3", "latest", "cloud" ]
-        flink: [ "1.17.2", "1.18.1", "1.19.3", "1.20.2", "latest"]
+        flink: [ "1.17.2", "1.18.1", "1.19.3", "1.20.2", "2.0.0", "latest"]
     steps:
       - name: Check for Cloud Credentials
         id: check-cloud-credentials