Rename NVBenchRuntimeException to NVBenchRuntimeError

Added exception to __init__.pyi

Author: oleksandr-pavlyk

python/cuda/nvbench/__init__.pyi

@@ -261,3 +261,8 @@ def run_all_benchmarks(argv: Sequence[str]) -> None:
         Sequence of CLI arguments controlling NVBench. Usually, it is `sys.argv`.
     """
     ...
+
+class NVBenchRuntimeError(RuntimeError):
+    """An exception raised if running benchmarks encounters an error"""
+
+    ...

python/src/py_nvbench.cpp

@@ -595,7 +595,7 @@ PYBIND11_MODULE(_nvbench, m)
   // Use handle to take a memory leak here, since this object's destructor may be called after
   // interpreter has shut down
   benchmark_exc =
-    py::exception<nvbench_run_error>(m, "NVBenchRuntimeException", PyExc_RuntimeError).release();
+    py::exception<nvbench_run_error>(m, "NVBenchRuntimeError", PyExc_RuntimeError).release();
   // == STEP 6
   //    ATTN: nvbench::benchmark_manager is a singleton