Add graphql required param to the importStart

app/assets/javascripts/jira_import/components/jira_import_app.vue

@@ -98,6 +98,7 @@ export default {
             input: {
               projectPath: this.projectPath,
               jiraProjectKey: project,
+              usersMapping: [],
             },
           },
           update: (store, { data }) =>

spec/frontend/jira_import/components/jira_import_app_spec.js

@@ -258,6 +258,7 @@ describe('JiraImportApp', () => {
           input: {
             jiraProjectKey: 'MTG',
             projectPath: 'gitlab-org/gitlab-test',
+            usersMapping: [],
           },
         },
       };