[Uptime] Fix flaky navigation to certs page in tests (elastic#66806)

Fix flaky navigation to certs page in tests.

Fixes elastic#66778

Author: andrewvc

x-pack/test/functional/services/uptime/navigation.ts

@@ -65,8 +65,8 @@ export function UptimeNavigationProvider({ getService, getPageObjects }: FtrProv
     },
 
     goToCertificates: async () => {
-      await testSubjects.click('uptimeCertificatesLink', 10000);
-      return retry.tryForTime(60 * 1000, async () => {
+      return retry.try(async () => {
+        await testSubjects.click('uptimeCertificatesLink');
         await testSubjects.existOrFail('uptimeCertificatesPage');
       });
     },