onnxruntime

fix handling of multiple QuantizeLinear nodes (#21675)

### Description
This fix addresses the issue of handling multiple QLinear nodes as
outputs from the target node in OVEP. Previously, the stripping logic
only supported a single Q node, leading to incorrect stripping of
additional Q nodes.



### Motivation and Context
The OVEP stripping logic was limited to handling a single Q node as an
output from the target node. As a result, additional Q nodes were being
stripped, despite the stripping rules indicating they should be
retained.

With this fix, OVEP can now properly handle multiple Q nodes according
to the specified stripping rules, ensuring that the fate of each Q node
is correctly determined.

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Co-authored-by: sfatimar <sahar.fatima@intel.com>