[SYCL][Graph] Specify API for explicit update using indices (#12486)

- Adds APIs to the specification for updating graph node arguments using
explicit indices (from `set_arg()` etc.)
- Also includes functionality for updating ND-range of kernel nodes
- Note: Current design is only for kernel execution nodes

Implementation in #12840

---------

Co-authored-by: Pablo Reble <[email protected]>
Co-authored-by: Ewan Crawford <[email protected]>