Disable flaky unit test RoundRobinSubcompactionsAgainstPressureToken (#13416)

Summary:
The test is [flaky](https://github.com/facebook/rocksdb/actions/runs/13417174378/job/37480755623?fbclid=IwZXh0bgNhZW0CMTEAAR2pj4E1ua6zMxz4FxnPAPLIz011t1ddjaWPbmFlldfSG7dZGjWGVy-mDkg_aem_40kU2iCmcN93WsmzLZxGsA) and my previous [fix](#13347) did not seem to work. It's likely a test set up issue and disable the test for now since RoundRobin compaction style is not used to reduce some test failure noise.

Pull Request resolved: #13416

Test Plan: CI

Reviewed By: hx235

Differential Revision: D70002097

Pulled By: cbi42

fbshipit-source-id: afe0f56363501dab2c9dc297bfbe0dff0ac6aeb3

Author: cbi42

db/db_compaction_test.cc

@@ -6440,7 +6440,11 @@ TEST_F(DBCompactionTest, PersistRoundRobinCompactCursor) {
   }
 }
 
-TEST_P(RoundRobinSubcompactionsAgainstPressureToken, PressureTokenTest) {
+// FIXME: the test is flaky and failing the assertion
+// ASSERT_EQ(num_planned_subcompactions, kNumSubcompactions);
+// It's likely a test set up issue, fix if we are to use RoubdRobin compaction.
+TEST_P(RoundRobinSubcompactionsAgainstPressureToken,
+       DISABLED_PressureTokenTest) {
   const int kKeysPerBuffer = 100;
   const int kNumSubcompactions = 2;
   const int kFilesPerLevel = 50;