cd: update ESRP release task owners

Author: MIchaelMainer

.azure-pipelines/ci-build.yml

@@ -232,7 +232,7 @@ extends:
                         contentsource: "Folder"
                         folderlocation: "$(Pipeline.Workspace)"
                         waitforreleasecompletion: true
-                        owners: vibiret@microsoft.com
+                        owners: mmainer@microsoft.com,gavinbarron@microsoft.com
                         approvers: mmainer@microsoft.com
                         serviceendpointurl: "https://api.esrp.microsoft.com"
                         mainpublisher: "ESRPRELPACMAN"