FIX Quicktests

Vectorisation test case was always set to avx which is problematic on machines not having avx.

pystencils_tests/test_vectorization.py

@@ -43,6 +43,7 @@ def test_inplace_update():
         f2 @= 2 * s.tmp0
 
     ast = ps.create_kernel(update_rule, cpu_vectorize_info={'instruction_set': 'sse'})
+    print(ps.show_code(ast))
     kernel = ast.compile()
     kernel(f=arr)
     np.testing.assert_equal(arr, 2)