Tests: Bump max compute to 120k

The Grant instruction could randomly exceed 110k, likely due to deriving
account addresses. That would cause random ci test failure occasionally.

programs/voter-stake-registry/tests/program_test/mod.rs

@@ -106,7 +106,7 @@ impl TestContext {
             processor!(voter_stake_registry::entry),
         );
         // intentionally set to half the limit, to catch potential problems early
-        test.set_compute_max_units(110000);
+        test.set_compute_max_units(120000);
 
         let governance_program_id =
             Pubkey::from_str(&"GovernanceProgramTest1111111111111111111111").unwrap();