test: 修复单测

Author: visiky

__tests__/unit/lab-spec.ts

@@ -17,7 +17,7 @@ describe('lab', () => {
     expect(fn).toBeCalledWith(`Plot 'X' is in BETA stage, DO NOT use it in production env.`);
 
     notice(Stage.STABLE, 'Y');
-    expect(fn).toBeCalledWith(`Plot 'Y' is in STABLE stage, import it by "import { Y } from '@antv/g2'".`);
+    expect(fn).toBeCalledWith(`Plot 'Y' is in STABLE stage, import it by "import { Y } from '@antv/g2plot'".`);
 
     // @ts-ignore
     notice('NO-STAGE', 'Y');