fix: normalize abort signals for telegram fetch

src/telegram/send.returns-undefined-empty-input.test.ts

@@ -164,12 +164,10 @@ describe("sendMessageTelegram", () => {
     });
     try {
       await sendMessageTelegram("123", "hi", { token: "tok" });
-      expect(botCtorSpy).toHaveBeenCalledWith(
-        "tok",
-        expect.objectContaining({
-          client: expect.objectContaining({ fetch: fetchSpy }),
-        }),
-      );
+      const clientFetch = (botCtorSpy.mock.calls[0]?.[1] as { client?: { fetch?: unknown } })
+        ?.client?.fetch;
+      expect(clientFetch).toBeTypeOf("function");
+      expect(clientFetch).not.toBe(fetchSpy);
     } finally {
       globalThis.fetch = originalFetch;
       if (originalBun === undefined) {