ci: Change release/v1.5 merge queue trigger (#2815)

ci: change merge queue base branch

Author: jpayne3506

.pipelines/pipeline.yaml

@@ -14,7 +14,7 @@ pr:
 trigger:
   branches:
     include:
-      - gh-readonly-queue/master/*
+      - gh-readonly-queue/release/v1.5/*
   tags:
     include:
       - "*"
@@ -599,7 +599,7 @@ stages:
                 clusterName: "mtcluster"
               swiftv2_dummy_e2e:
                 name: swiftv2_dummy_e2e
-                clusterName: "swiftv2dummy"              
+                clusterName: "swiftv2dummy"
           steps:
             - template: templates/delete-cluster.yaml
               parameters: