any-of plugin test: bugfix for environments where AggregateError exists (ref. #8)

__tests__/plugins/any-of.test.js

@@ -109,7 +109,11 @@ describe("plugin: any-of", () => {
     try {
       await self.LibResilientPlugins[0].fetch('https://resilient.is/test.json')
     } catch (e) {
-      expect(e[0].toString()).toMatch('Error')
+      if (e instanceof Array) {
+        expect(e[0].toString()).toMatch('Error')
+      } else {
+        expect(e).toBeInstanceOf(AggregateError)
+      }
     }
     expect(fetch).toHaveBeenCalled();
   });