Revert "chore: disable intermittently failing test"

This reverts commit a8468fdf2394302b69133144a820bac8293b33c5.

clj-e2e/test/logseq/e2e/rtc_basic_test.clj

@@ -16,7 +16,7 @@
 
 (use-fixtures :each fixtures/validate-graph)
 
-(deftest ^:fix-me rtc-basic-test
+(deftest rtc-basic-test
   (let [graph-name (str "rtc-graph-" (.toEpochMilli (java.time.Instant/now)))
         page-names (map #(str "rtc-test-page" %) (range 4))]
     (testing "open 2 app instances, add a rtc graph, check this graph available on other instance"