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

src/codeql.test.ts

@@ -21,11 +21,13 @@ setupTests(test);
 const sampleApiDetails = {
   auth: "token",
   url: "https://github.com",
+  apiURL: undefined,
 };
 
 const sampleGHAEApiDetails = {
   auth: "token",
   url: "https://example.githubenterprise.com",
+  apiURL: undefined,
 };
 
 test.beforeEach(() => {