onnxruntime

7db78930 - Fill CUDA opset gap for Softplus and Softsign to opset 22 (#28982)

Fill CUDA opset gap for Softplus and Softsign to opset 22 (#28982) Closes part of #27729. The CUDA EP registered Softplus and Softsign only for opset 1 (HFD). Opset 22 extended the type constraint to include BFloat16, but the CUDA EP was never updated. The BFloat16 compute kernels were already instantiated via `UNARY_ACTIVATION_OP_HFD_WITH_BF16`; only the EP registration was missing. Changes: - Cap opset-1 kernels as versioned [1, 21] (Softplus, Softsign) - Register opset-22 kernels with BFloat16 support (HFDX) - Add opset-22 tests: float (CPU+CUDA) and BFloat16 (CUDA, sm≥530) - Update `docs/OperatorKernels.md`