Use the API URL from the environment if it is present.

lib/feature-flags.test.js

@@ -16,6 +16,7 @@ ava_1.default.beforeEach(() => {
 const testApiDetails = {
     auth: "1234",
     url: "https://github.com",
+    apiURL: undefined,
 };
 const testRepositoryNwo = (0, repository_1.parseRepositoryNwo)("github/example");
 const ALL_FEATURE_FLAGS_DISABLED_VARIANTS = [