[OpenMP] Exclude a test that fails on smaller GitHub runners

Author: bryanpkc

openmp/runtime/test/ompt/teams/distribute_dispatch.c

@@ -4,6 +4,11 @@
 /// GCC lowering of distribute results in calls to 
 /// omp_get_num_teams/omp_get_team_num rather than region calls
 // UNSUPPORTED: gcc
+
+// This test expects 4 teams of 1 thread each to be created, and fails
+// on CI runners with insufficient resources.
+// UNSUPPORTED: linux
+
 #include "callback.h"
 
 #define WORK_SIZE 64