Add xpack_main as a dependency in a few tests (#55602) (#55847)

Author: mikecote

x-pack/test/alerting_api_integration/common/fixtures/plugins/actions/index.ts

@@ -31,7 +31,7 @@ export function getAllExternalServiceSimulatorPaths(): string[] {
 // eslint-disable-next-line import/no-default-export
 export default function(kibana: any) {
   return new kibana.Plugin({
-    require: ['actions'],
+    require: ['xpack_main', 'actions'],
     name: NAME,
     init: (server: Hapi.Server) => {
       // this action is specifically NOT enabled in ../../config.ts

x-pack/test/alerting_api_integration/common/fixtures/plugins/alerts/index.ts

@@ -11,7 +11,7 @@ import { ActionTypeExecutorOptions, ActionType } from '../../../../../../legacy/
 // eslint-disable-next-line import/no-default-export
 export default function(kibana: any) {
   return new kibana.Plugin({
-    require: ['actions', 'alerting', 'elasticsearch'],
+    require: ['xpack_main', 'actions', 'alerting', 'elasticsearch'],
     name: 'alerts',
     init(server: any) {
       server.plugins.xpack_main.registerFeature({