tests: Align with original repo

Apparently upstream does not run all the tests, the beforeAll() is not
even executed. On our side it was, causing a lot of errors related to
timeouts.

spec/etapi/backup.ts

@@ -0,0 +1,8 @@
+import etapi = require("../support/etapi");
+
+etapi.describeEtapi("backup", () => {
+  it("create", async () => {
+    const response = await etapi.putEtapiContent("backup/etapi_test");
+    expect(response.status).toEqual(204);
+  });
+});