require the use of node prefix on native imports

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

packages/backend-openapi-utils/report-testUtils.api.md

@@ -4,7 +4,7 @@
 
 ```ts
 import { Express as Express_2 } from 'express';
-import { Server } from 'http';
+import { Server } from 'node:http';
 
 // @public
 export const wrapInOpenApiTestServer: (app: Express_2) => Server | Express_2;

packages/backend-openapi-utils/src/proxy/setup.ts

@@ -17,7 +17,7 @@
 import * as mockttp from 'mockttp';
 import { OpenApiProxyValidator } from '../schema/validation';
 import getPort from 'get-port';
-import { Server } from 'http';
+import { Server } from 'node:http';
 
 export class Proxy {
   server: mockttp.Mockttp;

packages/backend-openapi-utils/src/testUtils.ts

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 import { Express } from 'express';
-import { Server } from 'http';
+import { Server } from 'node:http';
 import { Proxy } from './proxy/setup';
 
 const proxiesToCleanup: Proxy[] = [];