Switch off Exasol testsuite (for now)

Author: pj-spoelders

.github/workflows/ci.yml

@@ -912,7 +912,7 @@ jobs:
             - suite-delta-lake-databricks154
             - suite-delta-lake-databricks164
             - suite-delta-lake-databricks173
-            - suite-exasol
+            # - suite-exasol
             - suite-ranger
             - suite-gcs
             - suite-hive4