ci(manager): add new .jenkinsfile for mixed ks test on Enterprise

Because of Enterprise 2024.2 release, it makes sense to run mixed
keyspaces test (vnodes + tablets) with this Scylla version.

jenkins-pipelines/manager/ubuntu22-manager-vnodes-tablets-enterprise.jenkinsfile

@@ -0,0 +1,17 @@
+#!groovy
+
+// trick from https://github.com/jenkinsci/workflow-cps-global-lib-plugin/pull/43
+def lib = library identifier: 'sct@snapshot', retriever: legacySCM(scm)
+
+managerPipeline(
+    backend: 'aws',
+    region: 'us-east-1',
+    test_name: 'mgmt_cli_test.ManagerSanityTests.test_manager_sanity_vnodes_tablets_cluster',
+    test_config: '''["test-cases/manager/manager-regression-singleDC-set-distro.yaml", "configurations/tablets-initial-32.yaml"]''',
+
+    scylla_version: '2024.2',
+
+    post_behavior_db_nodes: 'destroy',
+    post_behavior_loader_nodes: 'destroy',
+    post_behavior_monitor_nodes: 'destroy',
+)