Add simple test to expose segfault in python In-Process API

[tanmayv25]

This test is currently failing with leaked objects

        if tensor_objects:
            print("Tensor objects")
            print(len(tensor_objects))
            print(type(tensor_objects[-1].memory_buffer.owner))
        print(Counter(new_objects))
    
>       assert len(tensor_objects) == 0, "Leaked Objects"
E       AssertionError: Leaked Objects
E       assert 100 == 0
E        +  where 100 = len([Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126597480841232, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126596405002256, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126595329163280, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126594253324304, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126593177485328, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), Tensor(data_type=<TRITONSERVER_DataType.FP64: 12>, shape=[134217728], memory_buffer=MemoryBuffer(data_ptr=126592101646352, memory_type=<TRITONSERVER_MemoryType.CPU: 0>, memory_type_id=0, size=1073741824, owner=array([1., 1., 1., ..., 1., 1., 1.]))), ...])

With the changes from PR #421, this test will cause segmentation fault.

Fatal Python error: Segmentation fault

Current thread 0x000078df1cc491c0 (most recent call first):
  Garbage-collecting
  File "/usr/local/lib/python3.10/dist-packages/test_tritonservrer/test_api.py", line 326 in test_cpu_memory_leak_async
  File "/usr/local/lib/python3.10/dist-packages/_pytest/python.py", line 159 in pytest_pyfunc_call
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_callers.py", line 103 in _multicall
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_manager.py", line 120 in _hookexec
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_hooks.py", line 513 in __call__
  File "/usr/local/lib/python3.10/dist-packages/_pytest/python.py", line 1627 in runtest
  File "/usr/local/lib/python3.10/dist-packages/_pytest/runner.py", line 174 in pytest_runtest_call
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_callers.py", line 103 in _multicall
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_manager.py", line 120 in _hookexec
  File "/usr/local/lib/python3.10/dist-packages/pluggy/_hooks.py", line 513 in __call__
  File "/usr/local/lib/python3.10/dist-packages/_pytest/runner.py", line 242 in <lambda>
  File "/usr/local/lib/python3.10/dist-packages/_pytest/runner.py", line 341 in from_call