Update workflow with another failing __ipow__() case

Author: honno

.github/workflows/numpy.yml

@@ -46,6 +46,7 @@ jobs:
         # https://github.com/numpy/numpy/issues/21211
         array_api_tests/test_special_cases.py::test_iop[__iadd__(x1_i is -0 and x2_i is -0) -> -0]
         # https://github.com/numpy/numpy/issues/21213
+        array_api_tests/test_special_cases.py::test_iop[__ipow__(x1_i is -infinity and x2_i > 0 and not (x2_i.is_integer() and x2_i % 2 == 1)) -> +infinity]
         array_api_tests/test_special_cases.py::test_iop[__ipow__(x1_i is -0 and x2_i > 0 and not (x2_i.is_integer() and x2_i % 2 == 1)) -> +0]
         # noted diversions from spec
         array_api_tests/test_special_cases.py::test_binary[floor_divide(x1_i is +infinity and isfinite(x2_i) and x2_i > 0) -> +infinity]