Reject nodes that feed inputs to a zero-input operator schema (#32633)
### Description
<!-- Describe your changes. -->
Add an explicit validation in `Node::UpdateInputArgCount()` to reject a
node that supplies actual inputs while its bound operator/function
schema declares no formal input parameters.
### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
When `op.inputs()` is empty but the node has ≥1 input, the arg-count
adjustment loop was skipped yet the trailing
`input_arg_count.push_back(arg_count_left)` still ran unconditionally,
producing `InputArgCount().size() == 1` against `op.inputs().size() ==
0`. This size-invariant violation later caused an out-of-bounds read at
`op.inputs()[i]` in `InferAndVerifyTypeMatch` during `Graph::Resolve()`.
This is reachable only via a model-local function in a custom domain:
for registered ops, `OpSchema::Verify` in the ONNX checker rejects the
extra inputs first, but for custom-domain function calls the checker
performs no arity validation.