Update deprecated sparse tensor construction

Previously this code would raise the following:
```
linear_operator\utils\interpolation.py:71: UserWarning: torch.sparse.SparseTensor(indices, values, shape, *, device=) is deprecated.  Please use torch.sparse_coo_tensor(indices, values, shape, dtype=, device=). (Triggered internally at ..\torch\csrc\utils\tensor_new.cpp:620.)
  summing_matrix = cls(summing_matrix_indices, summing_matrix_values, size)
```

This updates the code to avoid this.

Author: Balandat

linear_operator/utils/interpolation.py

@@ -63,12 +63,13 @@ def left_t_interp(interp_indices, interp_values, rhs, output_dim):
         device=interp_values.device,
     )
     size = torch.Size((batch_size, output_dim, num_data * num_interp))
-    type_name = summing_matrix_values.type().split(".")[-1]  # e.g. FloatTensor
-    if interp_values.is_cuda:
-        cls = getattr(torch.cuda.sparse, type_name)
-    else:
-        cls = getattr(torch.sparse, type_name)
-    summing_matrix = cls(summing_matrix_indices, summing_matrix_values, size)
+    summing_matrix = torch.sparse_coo_tensor(
+        summing_matrix_indices,
+        summing_matrix_values,
+        size,
+        dtype=summing_matrix_values.dtype,
+        device=summing_matrix_values.device,
+    )
 
     # Sum up the values appropriately by performing sparse matrix multiplication
     values = values.reshape(batch_size, num_data * num_interp, num_cols)